See the examples in the note1592493; 2)It is possible to change the rules in the files and reload its configuration without restart the RFC Gateway: open the transaction SMGW -> Goto -> expert functions -> external security -> reload However, in such situation, it is mandatory to de-register the registered program involved and reregister it again because programs already registered will continue following the old rules; 3)The rules in the secinfo and reginfo file do not always use the same syntax, it depends of the VERSION defined in the file. While typically remote servers start the to-be-registered program on the OS level by themselves, there may be cases where starting a program is used to register a Registered Server Program at the RFC Gateway. The subsequent blogs of will describe each individually. Refer to the SAP Notes 2379350 and2575406 for the details. Program cpict4 is allowed to be registered if it arrives from the host with address 10.18.210.140. Zu jedem Lauf des Programms RSCOLL00 werden Protokolle geschrieben, anhand derer Sie mgliche Fehler feststellen knnen. You can define the file path using profile parameters gw/sec_infoand gw/reg_info. Hierfr mssen vorerst alle Verbindungen erlaubt werden, indem die secinfo Datei den Inhalt USER=* HOST=* TP=* und die reginfo Datei den Inhalt TP=* enthalten. Ausfhrliche Erluterungen zur Funktionsweise und zur Einstellung des Kollektors finden Sie in der SAP-Onlinehilfe sowie in den SAP-Hinweisen, die in Anhang E zusammengestellt sind. If the Simulation Mode is active (parameter gw/sim_mode = 1), the last implicit rule will be changed to Allow all. Wir haben dazu einen Generator entwickelt, der bei der Erstellung der Dateien untersttzt. In these cases the program started by the RFC Gateway may also be the program which tries to register to the same RFC Gateway. If these profile parameters are not set the default rules would be the following allow all rules: reginfo: P TP=* In diesem Blog-Beitrag werden zwei von SAP empfohlene Vorgehensweisen zur Erstellung der secinfo und reginfo Dateien aufgefhrt mit denen die Security Ihres SAP Gateways verstrkt wird und wie der Generator dabei hilft. Most common use-case is the SAP-to-SAP communication, in other words communication via RFC connections between SAP NetWeaver AS systems, but also communication from RFC clients using the SAP Java Connector (JCo) or the SAP .NET Connector (NCo) to SAP NetWeaver systems. A LINE with a HOST entry having multiple host names (e.g. Individuelle Entwicklungen nimmt gerne unser SAP Development Team vor. As a result many SAP systems lack for example of proper defined ACLs to prevent malicious use. In addition, the existing rules on the reginfo/secinfo file will be applied, even on Simulation Mode. Now 1 RFC has started failing for program not registered. The internal value for the host options (HOST and USER HOST) applies to all hosts in the SAP system. The following steps usually need to be done manually to secure an SAP Gateway: Our SAST Interface Management module in the SAST SUITE provides support in hardening the SAP Gateway. If the TP name has been specified without wild cards, you can specify the number of registrations allowed here. Sie knnen anschlieend die Registerkarten auf der CMC-Startseite sehen. All subsequent rules are not even checked. The related program alias also known as TP Name is used to register a program at the RFC Gateway. So lets shine a light on security. Depending on the settings of the reginfo ACL a malicious user could also misuse this permissions to start a program which registers itself on the local RFC Gateway, e.g.,: Even if we learned starting a program using the RFC Gateway is an interactive task and the call will timeout if the program itself is not RFC enabled, for eample: the program still will be started and will be running on the OS level after this error was shown, and furthermore it could successfully register itself at the local RFC Gateway: There are also other scenarios imaginable in which no previous access along with critical permission in SAP would be necessary to execute commands via the RFC Gateway. Program cpict2 is allowed to be registered, but can only be run and stopped on the local host or hostld8060. The RFC Gateway act as an RFC Server which enables RFC function modules to be used by RFC clients. Please assist ASAP. Make sure that they are set as per the Notes: Note 1425765 - Generating sec_info reg_info Note 1947412 - MDM Memory increase and RFC connection error Ergebnis Sie haben eine Queue definiert. Sobald dieses Recht vergeben wurde, taucht die Registerkarte auch auf der CMC-Startseite wieder auf. We first registered it on the server it is defined (which was getting de-registered after a while so we registered it again through background command nohup *** & ), This solved the RFC communication on that Dialogue instance yet other Dialogue instances were not able to communicate on the RFC. In addition to proper network separation, access to all message server ports can be controlled on network level by the ACL file specified by profile parameter ms/acl_file or more specific to the internal port by the ACL file specified by profile parameter ms/acl_file_int. Here, the Gateway is used for RFC/JCo connections to other systems. The keyword internal will be substituted at evaluation time by a list of hostnames of application servers in status ACTIVE which is periodically sent to all connected RFC Gateways. Part 8: OS command execution using sapxpg. The very first line of the reginfo/secinfo file must be "#VERSION=2"; Each line must be a complete rule (you cannot break the rule into two or more lines); The RFC Gateway will apply the rules in the same order as they appear in the file, and only the first matching rule will be used (similar to the behavior of a network firewall). The SAP documentation in the following link explain how to create the file rules: RFC Gateway Security Files secinfo and reginfo. The default rules of reginfo and secinfo ACL (as mentioned in part 2 and part 3) are enabled if either profile parameter gw/acl_mode = 1 is set or if gw/reg_no_conn_info includes the value 16 in its bit mask, and if no custom ACLs are defined. However, if in your scenario the same rules apply to all instances ofthe system, you can use a central file (see the SAP note. The default configuration of an ASCS has no Gateway. In an ideal world each program alias of the relevant Registered Server Programs would be listed in a separate rule, even for registering program aliases from one of the hosts of internal. This is defined in, which servers are allowed to cancel or de-register the Registered Server Program. With this blogpost series i try to give a comprehensive explanation of the RFC Gateway Security: Part 1: General questions about the RFC Gateway and RFC Gateway security. The simulation mode is a feature which could help to initially create the ACLs. All other programs starting with cpict4 are allowed to be started (on every host and by every user). Please note: The proxying RFC Gateway will additionally check its reginfo and secinfo ACL if the request is permitted. An example could be the integration of a TAX software. Checking the Security Configuration of SAP Gateway. The network service that, in turn, manages the RFC communication is provided by the RFC Gateway. where ist the hint or wiki to configure a well runing gw-security ? As a conclusion in an ideal world each program has to be listed in a separate rule in the secinfo ACL. Please assist me how this change fixed it ? The parameter is gw/logging, see note 910919. This is for example used by AS ABAP when starting external commands using transaction SM49/SM69. In diesem Blog-Beitrag werden zwei von SAP empfohlene Vorgehensweisen zur Erstellung der secinfo und reginfo Dateien aufgefhrt mit denen die Security Ihres SAP Gateways verstrkt wird und wie der Generator dabei hilft. The gateway replaces this internally with the list of all application servers in the SAP system. Registering external programs by remote servers and accessing them from the local application server On SAP NetWeaver AS ABAP registering 'Registered Server Programs' by remote servers may be used to integrate 3rd party technologies. As soon as a program has registered in the gateway, the attributes of the retrieved entry (specifically ACCESS) are passed on to the registered program. Alerting is not available for unauthorized users, Right click and copy the link to share this comment, Part 1: General questions about the RFC Gateway and RFC Gateway security, Part 8: OS command execution using sapxpg, Secure Server Communication in SAP Netweaver AS ABAP. if the server is available again, this as error declared message is obsolete. In this case, the secinfo from all instances is relevant as the system will use the local RFC Gateway of the instance the user is logged on to start the tax program. Click more to access the full version on SAP for Me (Login . In the gateway monitor (SMGW) choose Goto Logged On Clients , use the cursor to select the registered program, and choose Goto Logged On Clients Delete Client . Giving more details is not possible, unfortunately, due to security reasons. A Stand-alone Gateway could utilise this keyword only after it was attached to the Message Server of AS ABAP and the profile parameter gw/activate_keyword_internal was set. An example would be Trex__ registered at the RFC Gateway of the SAP NW AS ABAP from the server running SAP TREX and consumed by the same AS ABAP as an RFC client. Configuring Connections between SAP Gateway and External Programs Securely, SAP Gateway Security Files secinfo and reginfo, Setting Up Security Settings for External Programs. The RFC Gateway does not perform any additional security checks. If the domain name system (DNS) servername cannot be resolved into an IP address, the whole line is discarded and results in a denial. TP is a mandatory field in the secinfo and reginfo files. Wir untersttzen Sie gerne bei Ihrer Entscheidungen. There are two different versions of the syntax for both files: Syntax version 1 does not enable programs to be explicitly forbidden from being started or registered. Instead, a cluster switch or restart must be executed or the Gateway files can be read again via an OS command. 2. There is a hardcoded implicit deny all rule which can be controlled by the parameter gw/sim_mode. The related program alias can be found in column TP Name: We can verify if the functionality of these Registered RFC Server programs is accessible from the AS ABAP by looking for a TCP/IP connection in transaction SM59 with Technical Settings Activation Type = Registered Server Program the corresponding Program ID and either no Gateway Options or connection details to any of the RFC Gateways belonging to the same system set: Please note: If the AS ABAP system has more than one application servers and therefore also more than one RFC Gateways there may be scenarios in which the Registered Server Program is registered at one specific RFC Gateway only. Thank you! In addition, note that the system checks the case of all keywords and only takes keywords into account if they are written in upper case. All subsequent rules are not checked at all. (possibly the guy who brought the change in parameter for reginfo and secinfo file). For this scenario a custom rule in the reginfo ACL would be necessary, e.g., P TP= HOST= ACCESS=internal,local CANCEL=internal,local,. Beachten Sie, da der SAP Patch Manager die Konfiguration Ihres SAP-Systems bercksichtigt und nur solche Support Packages in die Queue aufnimmt, die in Ihr System eingespielt werden drfen. The reginfo ACL contains rules related to Registered external RFC Servers. Terms of use |
This means the call of a program is always waiting for an answer before it times out. CANCEL is usually a list with all SAP servers from this system (or the keyword "internal"), and also the same servers as in HOSTS (as you must allow the program to de-register itself). NUMA steht fr Non-Uniform Memory Access und beschreibt eine Computer-Speicher-Architektur fr Multiprozessorsysteme, bei der jeder Prozessor ber einen eigenen, lokalen physischen Speicher verfgt, aber anderen Prozessoren ber einen gemeinsamen Adressraum direkten Zugriff darauf gewhrt (Distributed Shared Memory). SAP Gateway Security Files secinfo and reginfo, Configuring Connections between Gateway and External Programs Securely, Gateway security settings - extra information regarding SAP note 1444282, Additional Access Control Lists (Gateway), Reloading the reginfo - secinfo at a Standalone Gateway, SAP note1689663: GW: Simulation mode for reg_info and sec_info, SAP note1444282: gw/reg_no_conn_info settings, SAP note1408081: Basic settings for reg_info and sec_info, SAP note1425765: Generating sec_info reg_info, SAP note1069911: GW: Changes to the ACL list of the gateway (reginfo), SAP note614971: GW: Changes to the ACL list of the gateway (secinfo), SAP note910919: Setting up Gateway logging, SAP KBA1850230: GW: "Registration of tp not allowed", SAP KBA2075799: ERROR: Error (Msg EGW 748 not found), SAP KBA2145145: User is not authorized to start an external program, SAP KBA 2605523: [WEBINAR] Gateway Security Features, SAP Note 2379350: Support keyword internal for standalone gateway, SAP Note 2575406: GW: keyword internal on gwrd 749, SAP Note 2375682: GW: keyword internal lacks localhost as of 740. ooohhh my god, (It could not have been more complicated -obviously the sequence of lines is important): "# This must always be the last rule on the file see SAP note 1408081" + next line content, is not included as comment within the default-delivered reginfo file or secinfo file (after installation) -, this would save a lot ofwasted life time, gw/acl_mode: ( looks like to enable/disable the complete gw-security config, but ). It is strongly recommended to use syntax of Version 2, indicated by #VERSION=2in the first line of the files. Auch hier ist jedoch ein sehr groer Arbeitsaufwand vorhanden. The local gateway where the program is registered can always cancel the program. You have already reloaded the reginfo file. Only the secinfo from the CI is applicable, as it is the RFC Gateway from the CI that will be used to start the program (check the Gateway Options at the screenshot above). Even if the system is installed with an ASCS instance (ABAP Central Services comprising the message server and the standalone enqueue server), a Gateway can still be configured on the ASCS instance. so for me it should only be a warning/info-message. File reginfocontrols the registration of external programs in the gateway. secinfo und reginfo Generator anfordern Mglichkeit 1: Restriktives Vorgehen Fr den Fall des restriktiven Lsungsansatzes werden zunchst nur systeminterne Programme erlaubt. Diese durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen. For example: an SAP SLD system registering the SLD_UC and SLD_NUC programs at an ABAP system. If we do not have any scenarios which relay on this use-case we are should disable this functionality to prevent from misuse by setting profile parameter gw/rem_start = DISABLED otherwise we should consider to enforce the usage of SSH by setting gw/rem_start = SSH_SHELL. open transaction SMGW -> Goto -> expert functions -> Display secinfo/reginfo Green means OK, yellow warning, red incorrect. Part 3: secinfo ACL in detail Thus, part of your reginfo might not be active.The gateway is logging an error while performing name resolution.The operating system / DNS took 5 seconds to reply - 5006ms per the error message you posted; and the response was "host unknown".If the "HOST" argument on the reginfo rule from line 9 has only one host, then the whole rule is ignored as the Gateway could not determine the IP address of the server.Kind regards. The format of the first line is #VERSION=2, all further lines are structured as follows: Here the line starting with P or D, followed by a space or a TAB, has the following meaning: P means that the program is permitted to be started (the same as a line with the old syntax). The secinfo security file is used to prevent unauthorized launching of external programs. IP Addresses (HOST=, ACCESS= and/or CANCEL=): You can use IP addresses instead of host names. In this case the Gateway Options must point to exactly this RFC Gateway host. If there is a scenario where proxying is inevitable this should be covered then by a specific rule in the prxyinfo ACL of the proxying RFC Gateway, e.g.,: P SOURCE= DEST=internal,local. As we learned in part 4 SAP introduced the following internal rule in the in the prxyinfo ACL: Registered Server Programs at a standalone RFC Gateway may be used to integrate 3rd party technologies. . Another mitigation would be to switch the internal server communication to TLS using a so-called systemPKI by setting the profile parameter system/secure_communication = ON. Part 2: reginfo ACL in detail CANNOT_DETERMINE_EPS_PARCEL: Die OCS-Datei ist in der EPS-Inbox nicht vorhanden; vermutlich wurde sie gelscht. Part 4: prxyinfo ACL in detail There are two different syntax versions that you can use (not together). The Solution Manager (SolMan) system has only one instance, running at the host sapsmci. Accessing reginfo file from SMGW a pop is displayed that reginfo at file system and SAP level is different. Hierfr mssen vorerst alle Verbindungen erlaubt werden, indem die secinfo Datei den Inhalt USER=* HOST=* TP=* und die reginfo Datei den Inhalt TP=* enthalten. The syntax used in the reginfo, secinfo and prxyinfo changed over time. Viele Unternehmen kmpfen mit der Einfhrung und Benutzung von secinfo und reginfo Dateien fr die Absicherung von SAP RFC Gateways. With this blogpost series i try to give a comprehensive explanation of the RFC Gateway Security: Part 1: General questions about the RFC Gateway and RFC Gateway security. Part 2: reginfo ACL in detail. In case the files are maintained, the value of this parameter is irrelevant; gw/sim_mode: activates/deactivates the simulation mode (see the previous section of this WIKI page). 3. This allows default values to be determined for the security control files of the SAP Gateway (Reginfo; Secinfo; Proxyinfo) based on statistical data in the Gateway log. Here, activating Gateway logging and evaluating the log file over an appropriate period (e.g. RFC had issue in getting registered on DI. After an attack vector was published in the talk SAP Gateway to Heaven from Mathieu Geli and Dmitry Chastuhin at OPDCA 2019 Dubai (https://github.com/gelim/sap_ms) the RFC Gateway security is even more important than ever. Please pay special attention to this phase! They are: The diagram below shows the workflow of how the RFC Gateway works with the security rules and the involved parameters, like the Simulation Mode. As we learnt before the reginfo and secinfo are defining rules for very different use-cases, so they are not related. The secinfo file is holding rules controlling which programs (based on their executable name or fullpath, if not in $PATH) can be started by which user calling from which host(s) (based on its hostname/ip-address) on which RFC Gateway server(s) (based on their hostname/ip-address). Da das aber gewnscht ist, mssen die Zugriffskontrolllisten schrittweise um jedes bentigte Programm erweitert werden. After an attack vector was published in the talk SAP Gateway to Heaven from Mathieu Geli and Dmitry Chastuhin at OPDCA 2019 Dubai (https://github.com/gelim/sap_ms) the RFC Gateway security is even more important than ever. The default rule in prxyinfo ACL (as mentioned in part 4) is enabled if no custom ACL is defined. With this blogpost series i try to give a comprehensive explanation of the RFC Gateway Security: Part 1: General questions about the RFC Gateway and RFC Gateway security If you want to use this syntax, the whole file must be structured accordingly and the first line must contain the entry #VERSION=2 (written precisely in this format). Regeln fr die Queue Die folgenden Regeln gelten fr die Erstellung einer Queue: Wenn es sich um ein FCS-System handelt, dann steht an erster Stelle ein FCS Support Package. With this rule applied any RFC enabled program on any of the servers covered by the keyword internal is able to register itself at the RFC Gateway independent from which user started the corresponding executable on OS level (again refer to 10KBLAZE). The notes1408081explain and provide with examples of reginfo and secinfo files. We can identify these use cases by going to transaction SMGW -> Goto -> Logged on Clients and looking for programs listed with System Type = Registered Server and Gateway Host set to any IP address or hostname not belonging to any application server of the same system. As a result many SAP systems lack for example of proper defined ACLs to prevent malicious use of the RFC Gateway. this parameter controls the value of the default internal rules that the Gateway will use, in case the reginfo/secinfo file is not maintained. Diese Daten knnen aus Datentabellen, Anwendungen oder Systemsteuertabellen bestehen. If the TP name itself contains spaces, you have to use commas instead. secinfo und reginfo Generator anfordern Mglichkeit 1: Restriktives Vorgehen Fr den Fall des restriktiven . If other SAP systems also need to communicate with it, using the ECC system, the rule need to be adjusted, adding the hostnames from the other systems to the ACCESS option. Would you like more information on our SAST SUITE or would you like to find out more about ALL ROUND protection of your SAP systems? If no cancel list is specified, any client can cancel the program. gw/acl_mode: this parameter controls the value of the default internal rules that the RFC Gateway will use, in case the reginfo/secinfo file is not maintained. To use all capabilities it is necessary to set the profile parameter gw/reg_no_conn_info = 255. Please note: In most cases the registered program name differs from the actual name of the executable program on OS level. This is defined in, how many Registered Server Programs with the same name can be registered. RFCs between RFC clients using JCo/NCo or Registered Server Programs and the AS ABAP are typically controlled on network level only. Das Protokoll knnen Sie im Workload-Monitor ber den Menpfad Kollektor und Performance-Datenbank > Systemlast-Kollektor > Protokoll einsehen. Check the availability and use SM59 to ping all TP IDs.In the case of an SCS/ASCS instance, it cannot be reloaded via SMGW. Changes to the reginfo rules are not immediately effective, even afterhaving reloaded the file (transaction SMGW, menu Goto -> Expert functions -> External security -> Reread / Read again). It is configured to start the tax calculation program at the CI of the SAP system, as the tax system is installed only there. Again when a remote server of a Registered Server Program is going to be shutdown due to maintenance it may de-register its program from the RFC Gateway to avoid errors. Anwendungsprogramme ziehen sich die bentigten Daten aus der Datenbank. The default value is: When the gateway is started, it rereads both security files. Only clients from domain *.sap.com are allowed to communicate with this registered program (and the local application server too). A custom allow rule has to be maintained on the proxying RFC Gateway only. The message server port which accepts registrations is defined by profile parameter rdisp/msserv_internal. The reginfo file has the following syntax. Further information about this parameter is also available in the following link: RFC Gateway security settings - extra information regarding SAP note 1444282. We solved it by defining the RFC on MS. From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. In SAP NetWeaver Application Server Java: The SCS instance has a built-in RFC Gateway. Part 6: RFC Gateway Logging. It might be needed to add additional servers from other systems (for an SLD program SLD_UC, SLD_NUC, for example).CANCEL is usually a list with all SAP servers from this system (or the keyword "internal"), and also the same servers as in HOSTS (as you must allow the program to de-register itself).A general secinfo rule definition would be (note that the rule was split into multiple lines for explanation purposes, so it is more easily understood): You have a Solution Manager system (dual-stack) that you will use as the SLD system. We made a change in the location of Reginfo and Secinfo file location we moved it to SYS directory and updated the profile parameter accordingly (instance profile). Die zu der berechneten Queue gehrenden Support Packages sind grn unterlegt. It is configured to start the tax calculation program at the CI of the SAP system, as the tax system is installed only there. The first line of the reginfo/secinfo files must be # VERSION = 2. there are RED lines on secinfo or reginfo tabs, even if the rule syntax is correct. We can identify these use cases by going to transaction SMGW -> Goto -> Logged on Clients and looking for lines with System Type = Registered Server and Gateway Host = 127.0.0.1 (in some cases this may be any other IP address or hostname of any application server of the same system). 1. other servers had communication problem with that DI. From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. Die erstellten Log-Dateien knnen im Anschluss begutachtet und daraufhin die Zugriffskontrolllisten erstellt werden. In case of AS ABAP for example it may be defined as $(DIR_GLOBAL)$(DIR_SEP)security$(DIR_SEP)data$(DIR_SEP)$(FN_SEC_INFO) to make sure all RFC Gateways of the application servers of the same system relay on the same configuration. Diese durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen. Please note: SNC User ACL is not a feature of the RFC Gateway itself. Besonders bei groen Systemlandschaften werden viele externe Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann. Its location is defined by parameter 'gw/reg_info'. Only the first matching rule is used (similarly to how a network firewall behaves). As a result many SAP systems lack for example of proper defined ACLs to prevent malicious use. Whrend der Freischaltung aller Verbindungen wird mit dem Gateway-Logging eine Aufzeichnung aller externen Programmaufrufe und Systemregistrierungen vorgenommen. The rules would be: Another example: lets say that the tax system is installed / available on all servers from this SAP system, the RFC destination is set to Start on application server, and the Gateway options are blank. Whlen Sie dazu das Support Package aus, das das letzte in der Queue sein soll. Darber hinaus stellt die dauerhafte manuelle Freischaltung einzelner Verbindungen einen stndigen Arbeitsaufwand dar. Access attempts coming from a different domain will be rejected. In SAP NetWeaver Application Server ABAP: Every Application Server has a built-in RFC Gateway. After an attack vector was published in the talk SAP Gateway to Heaven from Mathieu Geli and Dmitry Chastuhin at OPDCA 2019 Dubai (https://github.com/gelim/sap_ms) the RFC Gateway security is even more important than ever. How to guard your SAP Gateway against unauthorized calls, Study shows SAP systems especially prone to insider attacks, Visit our Pathlock Germany website https://pathlock.com/de/, Visit our Pathlock Blog: https://pathlock.com/de/blog/, SAST SOLUTIONS: Now member of Pathlock Group. All of our custom rules should bee allow-rules. Each line must be a complete rule (rules cannot be broken up over two or more lines). secinfo: P TP=* USER=* USER-HOST=* HOST=*. In these cases the program alias is generated with a random string. Part 5: ACLs and the RFC Gateway security. A general secinfo rule definition would be (note that the rule was split into multiple lines for explanation purposes, so it is more easily understood): Only the (SAP level) user IDs BOB and JOHN can start this program, and they will be logged on to one of the instances from this SAP system. The SAP note1689663has the information about this topic. The default value is: gw/sec_info = $(DIR_DATA)/secinfo gw/reg_info = $(DIR_DATA)/reginfo If USER-HOST is not specifed, the value * is accepted. Here, activating Gateway logging and evaluating the log file over an appropriate period (e.g. The RFC Gateway allows external RFC Server programs (also known as Registered Server or Registered Server Program) to register to itself and allows RFC clients to consume the functions offered by these programs. What is important here is that the check is made on the basis of hosts and not at user level. Example Example 1: This parameter will enable special settings that should be controlled in the configuration of reginfo file. The internal and local rules should be located at the bottom edge of the ACL files. Should a cyberattack occur, this will give the perpetrators direct access to your sensitive SAP systems. Trademark. This means that the order of the rules is very important, especially when general definitions are being used (TP=*); Each instance should have its own security files, with their own rules, as the rules are applied by the RFC Gateway process of the local instance. Part 5: ACLs and the RFC Gateway security. There may also be an ACL in place which controls access on application level. Someone played in between on reginfo file. With this rule applied for example any user with permissions to create or edit TCP/IP connections in transaction SM59 would be able to call any executable or script at OS level on the RFC Gateway server in the context of the user running the RFC gateway process. Firstly review what is the security level enabled in the instance as per the configuration of parameter gw/reg_no_conn_info. 2.20) is taken into account only if every comma-separated entry can be resolved into an IP address. All programs started by hosts within the SAP system can be started on all hosts in the system.
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