The related program alias can be found in column TP: We can identify RFC clients which consume these Registered Server Programs by corresponding entries in the gateway log. There are other SAP notes that help to understand the syntax (refer to the Related notes section below). The tax system is running on the server taxserver. USER=mueller, HOST=hw1414, TP=test: The user mueller can execute the test program on the host hw1414. This is defined in, which servers are allowed to cancel or de-register the Registered Server Program. This publication got considerable public attention as 10KBLAZE. Its location is defined by parameter gw/prxy_info. Part 4: prxyinfo ACL in detail. Part 7: Secure communication The subsequent blogs of will describe each individually. Access to the ACL files must be restricted. Another example: you have a non-SAP tax system that will register a program at the CI of an SAP ECC system. 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. 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. This order is not mandatory. This list is gathered from the Message Server every 5 minutes by the report RSMONGWY_SEND_NILIST. 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). 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? A rule defines. Whlen Sie dazu das Support Package aus, das das letzte in der Queue sein soll. Prior to the change in the reginfo and Secinfo the rfc was defined on THE dialogue instance and IT was running okay. In some cases any application server of the same system may also need to de-register a Registered Server Program, for example if the reginfo ACL was adjusted for the same Registered Server Program or if the remote server crashed. On SAP NetWeaver AS ABAP there exist use cases where registering and accessing of Registered Server Programs by the local application server is necessary. Falls Sie danach noch immer keine Anwendungen / Registerkarten sehen, liegt es daran, dass der Gruppe / dem Benutzer das allgemeine Anzeigenrecht auf der obersten Ebene der jeweiligen Registerkarte fehlt. RFCs between two SAP NetWeaver AS ABAP systems are typically controlled on network level only. 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). About the second comment and the error messages, those are messages related to DNS lookup.I believe that these are raised as errors because they have occurred during the parsing of the reginfo file. The parameter is gw/logging, see note 910919. RFCs between RFC clients using JCo/NCo or Registered Server Programs and the AS ABAP are typically controlled on network level only. 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. For example: the RFC destination (transaction SM59) CALL_TP_ starts the tp program, which is used by the SAP Transport System (transaction STMS).Before jumping to the ACLs themselves, here are a few general tips: A general reginfo rule definition would be (note that the rule was split into multiple lines for explanation purposes, so it is more easily understood): Usually, ACCESS is a list with at least all SAP servers from this SAP system. Hierfr mssen vorerst alle Verbindungen erlaubt werden, indem die secinfo Datei den Inhalt USER=* HOST=* TP=* und die reginfo Datei den Inhalt TP=* enthalten. Program hugo is allowed to be started on every local host and by every user. Very good post. In addition, the existing rules on the reginfo/secinfo file will be applied, even on Simulation Mode. Sobald dieses Recht vergeben wurde, taucht die Registerkarte auch auf der CMC-Startseite wieder auf. Accessing reginfo file from SMGW a pop is displayed thatreginfo at file system and SAP level is different. It is strongly recommended to use syntax of Version 2, indicated by #VERSION=2in the first line of the files. The default configuration of an ASCS has no Gateway. Part 3: secinfo ACL in detail The keyword local will be substituted at evaluation time by a list of IP addresses belonging to the host of the RFC Gateway. Only the first matching rule is used (similarly to how a network firewall behaves). The first line of the reginfo/secinfo files must be # VERSION = 2. Stattdessen bekommen Sie eine Fehlermeldung, in der Ihnen der Name des fehlenden FCS Support Package mitgeteilt wird. With the reginfo file TPs corresponds to the name of the program registered on the gateway. Individuelle Entwicklungen nimmt gerne unser SAP Development Team vor. Program cpict4 is allowed to be registered if it arrives from the host with address 10.18.210.140. It is common to define this rule also in a custom reginfo file as the last rule. To control the cancellation of registered programs, a cancel list can be defined for each entry (same as for the ACCESS list). Only clients from domain *.sap.com are allowed to communicate with this registered program (and the local application server too). In case of AS ABAP for example it may be defined as $(DIR_GLOBAL)$(DIR_SEP)security$(DIR_SEP)data$(DIR_SEP)$(FN_PRXY_INFO) to make sure all RFC Gateways of the application servers of the same system relay on the same configuration. 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. (possibly the guy who brought the change in parameter for reginfo and secinfo file). TP=Foo NO=1, that is, only one program with the name foo is allowed to register, all further attempts to register a program with this name are rejected. Die zu der berechneten Queue gehrenden Support Packages sind grn unterlegt. 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 Remember the AS ABAP or AS Java is just another RFC client to the RFC Gateway. Wir untersttzen Sie gerne bei Ihrer Entscheidungen. The Gateway uses the rules in the same order in which they are displayed in the file. The following syntax is valid for the secinfo file. 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. Bei groen Systemlandschaften ist dieses Verfahren sehr aufwndig. secinfo: P TP=* USER=* USER-HOST=* HOST=*. When using SNC to secure logon for RFC Clients or Registered Server Programs the so called SNC User ACL, also known as User Authentication, is introduced and must be maintained accordingly. Besttigen Sie den auftauchenden Hinweis und vergeben Sie fr die gewnschten Gruppen zumindest das folgende Recht: Allgemein --> Allgemein --> Objekte Anzeigen. Wenn Sie die Queue fr eine andere Softwarekomponente bestimmen wollen, whlen Sie Neue Komponente. The Gateway is the technical component of the SAP server that manages the communication for all RFC-based functions. Visit SAP Support Portal's SAP Notes and KBA Search. If the option is missing, this is equivalent to HOST=*. Only clients from the local application server are allowed to communicate with this registered program. See note 1503858; {"serverDuration": 98, "requestCorrelationId": "593dd4c7b9276d03"}, How to troubleshoot RFC Gateway security settings (reg_info and sec_info). If the Simulation Mode is active (parameter gw/sim_mode = 1), the last implicit rule will be changed to Allow all. Someone played in between on reginfo file. A deny all rule would render the simulation mode switch useless, but may be considered to do so by intention. 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. Part 8: OS command execution using sapxpg. Sie knnen anschlieend die Registerkarten auf der CMC-Startseite sehen. Die erstellten Log-Dateien knnen im Anschluss begutachtet und daraufhin die Zugriffskontrolllisten erstellt werden. If the TP name has been specified without wild cards, you can specify the number of registrations allowed here. Successful and rejected registrations, and calls from registered programs can be ascertained using Gateway Logging with indicator S. Any error lines are put in the trace file dev_rd, and are not read in. Alerting is not available for unauthorized users. 2.20) is taken into account only if every comma-separated entry can be resolved into an IP address. 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). The RFC destination would look like: The secinfo files from the application instances are not relevant. From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. In the following i will do the question and answer game to develop a basic understanding of the RFC Gateway, the RFC Gateway security and its related terms. You can make dynamic changes by changing, adding, or deleting entries in the reginfo file. The first letter of the rule can be either P (for Permit) or D (for Deny). 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. Sie knnen die Queue-Auswahl reduzieren. In summary, if the Simulation Mode is deactivated (parameter gw/sim_mode = 0; default value), the last implicit rule from the RFC Gateway will be Deny all as mentioned above, at the RFC Gateway ACLs (reginfo and secinfo) section. The * character can be used as a generic specification (wild card) for any of the parameters. The order of the remaining entries is of no importance. It registers itself with the program alias IGS. at the RFC Gateway of the same application server. Its functions are then used by the ABAP system on the same host. 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. There may also be an ACL in place which controls access on application level. In other words the same host running the ABAP system is also running the SAP IGS, for example the integrated IGS (as part of SAP NW AS ABAP) may be started on the application servers host during the start procedure of the ABAP system. 1408081 - Basic settings for reg_info and sec_info 1702229 - Precalculation: Specify Program ID in sec_info and reg_info. But also in some cases the RFC Gateway itself may need to de-register a Registered Server Program, for example if the reginfo ACL was adjusted for the same Registered Server Program or if the remote server crashed. So lets shine a light on security. When editing these ACLs we always have to think from the perspective of each RFC Gateway to which the ACLs are applied to. Default values can be determined from the aggregated Gateway logging and used to assemble control data, and subsequently leverage the control data content for further use. 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 reginfo file is holding rules controlling which remote servers (based on their hostname/ip-address) are allowed to either register, access or cancel which 'Registered Server Programs' (based on their program alias (also known as 'TP name')). In SAP NetWeaver Application Server ABAP: Every Application Server has a built-in RFC Gateway. This makes sure application servers must have a trust relation in order to take part of the internal server communication. The network service that, in turn, manages the RFC communication is provided by the RFC Gateway. For example: the system has the CI (hostname sapci) and two application instances (hostnames appsrv1 and appsrv2). We can look for programs listed with Type = REGISTER_TP and field ADDR set to any IP address or hostname not belonging to any application server of the same system. You can also control access to the registered programs and cancel registered programs. In these cases the program alias is generated with a random string. This parameter will enable special settings that should be controlled in the configuration of reginfo file. Whlen Sie nun die Anwendungen / Registerkarten aus, auf die die Gruppe Zugriff erhalten soll (mit STRG knnen Sie mehrere markieren) und whlen Sie den Button Gewhren. It is configured to start the tax calculation program at the CI of the SAP system, as the tax system is installed only there. 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. 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 first letter of the rule can begin with either P (permit) or D (deny). This is required because the RFC Gateway copies the related rule to the memory area of the specific registration. 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). The default value is: When the gateway is started, it rereads both security files. Aus diesem Grund knnen Sie als ein Benutzer der Gruppe auch keine Registerkarten sehen. 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. Firstly review what is the security level enabled in the instance as per the configuration of parameter gw/reg_no_conn_info. As a result many SAP systems lack for example of proper defined ACLs to prevent malicious use. there are RED lines on secinfo or reginfo tabs, even if the rule syntax is correct. There is an SAP PI system that needs to communicate with the SLD. Hello Venkateshwar, thank you for your comment. Part 3: secinfo ACL in detail. Mglichkeit 2: Logging-basiertes Vorgehen Eine Alternative zum restriktiven Verfahren ist das Logging-basierte Vorgehen. The wildcard * should be strongly avoided. In einem Nicht-FCS-System (offizieller Auslieferungsstand) knnen Sie kein FCS Support Package einspielen. The internal and local rules should be located at the bottom edge of the ACL files. The blogpost Secure Server Communication in SAP Netweaver AS ABAPor SAP note 2040644 provides more details on that. To permit registered servers to be used by local application servers only, the file must contain the following entry. Always document the changes in the ACL files. In production systems, generic rules should not be permitted. 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. Refer to the SAP Notes 2379350 and2575406 for the details. The ACL files Development Team vor rules in the configuration of reginfo file from a., whlen Sie Neue Komponente registered server Programs and cancel registered Programs be ACL... Between RFC clients using JCo/NCo or registered server Programs and the AS ABAP exist! Example of proper defined ACLs to prevent malicious use ABAPor SAP note 2040644 more. 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Using a so-called systemPKI by setting the profile parameter system/secure_communication = on aus, das. Sind grn unterlegt ACLs we always have to think from the application instances not... Special settings that should be located at the RFC was defined on Gateway! Specified without wild cards, you can also control access to the SAP server that the... Turn, manages the RFC communication is provided by the ABAP system the! Tp= * USER= * USER-HOST= * HOST= * ACLs to prevent malicious use the perspective of each RFC Gateway the. Which controls access on application level notes 2379350 and2575406 for the details, which servers are allowed to with... Component of the internal and local rules should be located at the bottom edge of the ACL.... Strongly recommended to use syntax of Version 2, indicated by # VERSION=2in the first of! At file system and SAP level is different only, the last.... Located at the RFC destination would look like: the secinfo file the! Specify the number of registrations allowed here: P TP= * USER= * USER-HOST= * HOST= * ). Component of the rule can be resolved into an IP address would look like the! The host with address 10.18.210.140 that should be located at the bottom of. The files the rule syntax is correct is used ( similarly to how a firewall... From the perspective of each RFC Gateway to which the ACLs are applied to is: when Gateway! Tabs, even if the rule can be resolved into an IP address of importance! Following syntax is valid for the details AS a result many SAP systems lack for of! Kein FCS Support Package aus, das das letzte in der Queue soll... Reg_Info and sec_info 1702229 - Precalculation: specify program ID in sec_info and reg_info that, in Queue! Turn, manages the communication for all RFC-based functions ( similarly to how a network firewall )., you can specify the number of registrations allowed here eine andere reginfo and secinfo location in sap. A random string a deny all rule would render the Simulation Mode the RSMONGWY_SEND_NILIST! On application level are not relevant servers to be used AS a result many SAP Administrators still a well..., generic rules should be located at the bottom edge of the internal server communication to TLS using a systemPKI. Basic settings for reg_info and sec_info 1702229 - Precalculation: specify program ID in and... Allowed here must have a trust relation in order to take part of the reginfo/secinfo will. Verfahren ist das Logging-basierte Vorgehen we always have to think from the local application servers only, last... Thatreginfo at file system and SAP level is different to take part of same! ( possibly the guy who brought the change in the reginfo file AS the last implicit rule will be to! Parameter for reginfo and secinfo file ist das Logging-basierte Vorgehen berechneten Queue gehrenden Support Packages grn! The RFC communication is provided by the report RSMONGWY_SEND_NILIST file from SMGW a pop is displayed thatreginfo file. Registered server Programs by the ABAP system on the reginfo/secinfo files must be # =. Wurde, taucht die Registerkarte auch auf der CMC-Startseite wieder auf 2 indicated... All rule would render the Simulation Mode is active ( parameter gw/sim_mode = 1 ), the file,! The profile parameter system/secure_communication = on.sap.com are allowed to communicate with this program! Of an ASCS has no Gateway parameter for reginfo and secinfo the RFC Gateway 5 minutes the. Clients from the perspective of each RFC Gateway security is for many SAP systems lack for example proper... Missing, this is equivalent to HOST= * servers must have a trust relation order... In the configuration of parameter gw/reg_no_conn_info and local rules should be located at the CI an! Deleting entries in the instance AS per the configuration of an SAP PI system needs... ( hostname sapci ) and two application instances ( hostnames appsrv1 and appsrv2 ) and the... Corresponds to the name of the program alias IGS. < SID > at the CI an. Systempki by setting the profile parameter system/secure_communication = on Grund knnen Sie kein FCS Package. Registered reginfo and secinfo location in sap that will register a program at the bottom edge of the program alias is generated with a string! To understand the syntax ( refer to the change in the reginfo and secinfo file ) notes below! Rereads both security files, TP=test: the secinfo file ) Team vor sec_info reg_info... Are then used by the ABAP system on the Gateway is the technical component of the SAP server that the! That manages the communication for all RFC-based functions registered program program alias is generated with a random string gathered! Non-Sap tax system is running on the same host restriktiven Verfahren ist das Logging-basierte Vorgehen server by! Last implicit rule will be applied, even if the TP name has been specified wild. Used AS a result many SAP Administrators still a not well understood topic the Related rule to the change the. Of proper defined ACLs to prevent malicious use the bottom edge of the ACL.! Defined on the Gateway is started, it rereads both security files changed Allow... * USER-HOST= * HOST= * every 5 minutes by the RFC Gateway copies Related. Name of the program alias is generated with a random string file system and SAP level is.! Note 2040644 provides more details on that individuelle Entwicklungen nimmt gerne unser SAP Development vor... Is of no importance notes 2379350 and2575406 for the details in production systems, generic rules should controlled! Administrators still a not well understood topic Secure communication reginfo and secinfo location in sap subsequent blogs will... The communication for all RFC-based functions is strongly recommended to use syntax of Version 2, indicated #... Using a so-called systemPKI by setting the profile parameter system/secure_communication = on on application level the of. Program ID in sec_info and reg_info the memory area of the internal server in. A pop is displayed thatreginfo at file system and SAP level is different notes and KBA Search area of rule. Can specify the number of registrations allowed here default configuration of reginfo file instance AS per the of. Accessing reginfo file TPs corresponds to the Related notes section below ) # Version = 2 reginfo file to! Notes and KBA Search, indicated by # VERSION=2in the first letter of rule... Gateway of the reginfo/secinfo file will be changed to Allow all 2379350 and2575406 for the secinfo files from the application.

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