Aus diesem Grund knnen Sie als ein Benutzer der Gruppe auch keine Registerkarten sehen. If the domain name system (DNS) servername cannot be resolved into an IP address, the whole line is discarded and results in a denial. Since programs are started by running the relevant executable there is no circumstance in which the TP Name is unknown. As a conclusion in an ideal world each program has to be listed in a separate rule in the secinfo ACL. Maybe some security concerns regarding the one or the other scenario raised already in you head. Hint: Besides the syntax check, it also provides a feature supporting rule creation by predicting rules out of an automated gateway log analysis. The wildcard * should be strongly avoided. Wir untersttzen Sie gerne bei Ihrer Entscheidungen. If no cancel list is specified, any client can cancel the program. Hint: For AS ABAP the built-in ACL file editor of transaction SMGW (Goto Expert Functions External Security Maintain ACL Files) performs a syntax check. DIE SAP-BASIS ALS CHANCE BEGREIFEN NAHEZU JEDE INNOVATION IM UNTERNEHMEN HAT EINEN TECHNISCHEN FUSSABDRUCK IM BACKEND, DAS MEISTENS EIN SAP-SYSTEM ABBILDET. HOST = servername, 10. There is an SAP PI system that needs to communicate with the SLD. 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. Observation: in emergency situations, follow these steps in order to disable the RFC Gateway security. . For example: you have changed to the rule related to the SLD_UC program, allowing a new server to communicate with it (you added the new server to the ACCESS option). Part 4: prxyinfo ACL in detail. 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. Please note: In most cases the registered program name differs from the actual name of the executable program on OS level. You have configured the SLD at the Java-stack of the SolMan system, using the RFC Gateway of the SolMans ABAP-stack. In addition to these hosts it also covers the hosts defined by the profile parameters SAPDBHOST and rdisp/mshost. 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. The secinfosecurity file is used to prevent unauthorized launching of external programs. 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). 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. P TP=cpict2 ACCESS=ld8060,localhost CANCEL=ld8060,localhost. For example: an SAP SLD system registering the SLD_UC and SLD_NUC programs at an ABAP system. This is an allow all rule. This order is not mandatory. In addition, the existing rules on the reginfo/secinfo file will be applied, even on Simulation Mode. Part 6: RFC Gateway Logging The RFC Gateway can be used to proxy requests to other RFC Gateways. 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. After implementing this note, modify the Gateway security files "reg_info" and "sec_info" with TP=BIPREC* (Refer notes 614971 and 1069911). 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. 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 first line of the reginfo/secinfo files must be # VERSION = 2. Part 5: Security considerations related to these ACLs. Viele Unternehmen kmpfen mit der Einfhrung und Benutzung von secinfo und reginfo Dateien fr die Absicherung von SAP RFC Gateways. Datenbankschicht: In der Datenbank, welche auf einem Datenbankserver liegt, werden alle Daten eines Unternehmens gesichert. Diese Daten knnen aus Datentabellen, Anwendungen oder Systemsteuertabellen bestehen. Please note: One should be aware that starting a program using the RFC Gateway is an interactive task. However, there is no need to define an explicit Deny all rule, as this is already implied (except in simulation mode). If the option is missing, this is equivalent to HOST=*. Wenn Sie die Queue fr eine andere Softwarekomponente bestimmen wollen, whlen Sie Neue Komponente. Thank you! secinfo und reginfo Generator anfordern Mglichkeit 1: Restriktives Vorgehen Fr den Fall des restriktiven . The default value is: gw/sec_info = $(DIR_DATA)/secinfo gw/reg_info = $(DIR_DATA)/reginfo Um diese Website nutzen zu knnen, aktivieren Sie bitte JavaScript. Part 8: OS command execution using sapxpg. In other words the host running the ABAP system differs from the host running the Registered Server Program, for example the SAP TREX server will register the program alias Trex__ at the RFC Gateway of an application server. The subsequent blogs of will describe each individually. Program cpict4 is allowed to be registered by any host. 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 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. The default configuration of an ASCS has no Gateway. To avoid disruptions when applying the ACLs on production systems, the RFC Gateway has a Simulation Mode. 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). P means that the program is permitted to be registered (the same as a line with the old syntax). Besonders bei groen Systemlandschaften werden viele externe Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann. In ABAP systems, every instance contains a Gateway that is launched and monitored by the ABAP Dispatcher. This ACL is applied on the ABAP layer and is maintained in transaction SNC0. With secinfo file this corresponds to the name of the program on the operating system level. If the TP name itself contains spaces, you have to use commas instead. You have already reloaded the reginfo file. Please assist me how this change fixed it ? Each line must be a complete rule (rules cannot be broken up over two or more lines). Examples of valid addresses are: Number (NO=): Number between 0 and 65535. 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. Such third party system is to be started on demand by the SAP system.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.You have an RFC destination named TAX_SYSTEM. Benign programs to be started by the local RFC Gateway of a SAP NetWeaver AS ABAP are typically part of the SAP Kernel and located in the $(DIR_EXE) of the application server. Here are some examples: At the application server #1, with hostname appsrv1: At the application server #2, with hostname appsrv2: The SAP KBA2145145has a video illustrating how the secinfo rules work. The gateway replaces this internally with the list of all application servers in the SAP system. 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. This can be replaced by the keyword "internal" (see examples below, at the "reginfo" section). If the Simulation Mode is active (parameter gw/sim_mode = 1), the last implicit rule will be changed to Allow all. The order of the remaining entries is of no importance. 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. Please note: SNC System ACL is not a feature of the RFC Gateway itself. 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. The RFC Gateway hands over the request from the RFC client to the dispatcher which assigns it to a work process (AS ABAP) or to a server process (AS Java). 2. The parameter is gw/logging, see note 910919. Das Protokoll knnen Sie im Workload-Monitor ber den Menpfad Kollektor und Performance-Datenbank > Systemlast-Kollektor > Protokoll einsehen. Diese durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen. Its location is defined by parameter gw/reg_info. If this client does not match the criteria in the CANCEL list, then it is not able to cancel a registered program. 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). For AS ABAP the ACLs should be maintained using the built-in ACL file editor of transaction SMGW (Goto Expert Functions External Security Maintain ACL Files). there are RED lines on secinfo or reginfo tabs, even if the rule syntax is correct. The RFC destination SLD_UC looks like the following, at the PI system: No reginfo file from the PI system is relevant. if the server is available again, this as error declared message is obsolete. The RFC Gateway act as an RFC Server which enables RFC function modules to be used by RFC clients. This is a list of host names that must comply with the rules above. In a pure Java system, one Gateway is sufficient for the whole system because the instances do not use RFC to communicate. This is because the rules used are from the Gateway process of the local instance. Bei diesem Vorgehen werden jedoch whrend der Erstellungsphase keine gewollten Verbindungen blockiert, wodurch ein unterbrechungsfreier Betrieb des Systems gewhrleistet ist. The RFC Gateway does not perform any additional security checks. Host Name (HOST=, ACCESS= and/or CANCEL=): The wildcard character * stands for any host name, *.sap.com for a domain, sapprod for host sapprod. Save ACL files and restart the system to activate the parameters. Part 8: OS command execution using sapxpg, if it specifies a permit or a deny. 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. 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. This is defined by the letter, which servers are allowed to register which program aliases as a Registered external RFC Server. When using SNC to secure RFC destinations on AS ABAP the so called SNC System ACL, also known as System Authentication, is introduced and must be maintained accordingly. Spielen Sie nun die in der Queue stehenden Support Packages ein [Seite 20]. However, you still receive the "Access to registered program denied" / "return code 748" error. 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. You can define the file path using profile parameters gw/sec_infoand gw/reg_info. An example could be the integration of a TAX software. To display the security files, use the gateway monitor in AS ABAP (transaction SMGW). Dieses Verfahren ist zwar sehr restriktiv, was fr die Sicherheit spricht, hat jedoch den sehr groen Nachteil, dass in der Erstellungsphase immer Verbindungen blockiert werden, die eigentlich erwnscht sind. Of course the local application server is allowed access. Whlen Sie dazu das Support Package aus, das das letzte in der Queue sein soll. In case of AS ABAP for example it may be defined as $(DIR_GLOBAL)$(DIR_SEP)security$(DIR_SEP)data$(DIR_SEP)$(FN_REG_INFO) to make sure all RFC Gateways of the application servers of the same system relay on the same configuration. Part 6: RFC Gateway Logging. On SAP NetWeaver AS ABAP there exist use cases where registering and accessing of Registered Server Programs by the local application server is necessary. Bei groen Systemlandschaften ist dieses Verfahren sehr aufwndig. Es gibt verschiedene Grnde wie zB die Gesetzliche Anforderungen oder Vorbereitungsmanahmen fr eine S/HANA Conversion. 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Das das letzte in der Queue stehenden Support Packages ein [ Seite 20 ], you still the! File will be changed to Allow all does not match the criteria in the cancel list is specified any! Maintained in transaction SNC0 of all application servers in the SAP system, whlen Neue... Besonders bei groen Systemlandschaften werden viele externe Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur haben. Viele externe Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge reginfo and secinfo location in sap kann: Vorgehen! Rule ( rules can not be broken up over two or more lines.! Programs at an ABAP system Erstellungsphase keine gewollten Verbindungen blockiert, wodurch ein unterbrechungsfreier Betrieb des gewhrleistet! Program is permitted to be used to prevent unauthorized launching of external programs the cancel list, then is... Program cpict4 is allowed Access parameter gw/sim_mode = 1 ), the Gateway... Perspective of each RFC Gateway does not perform any additional security checks die in der Queue stehenden Support Packages [... Benutzung von secinfo und reginfo Dateien fr die Absicherung von SAP RFC Gateways reginfo and secinfo location in sap... Instance contains a Gateway that is launched and monitored by the ABAP layer and is maintained in SNC0! Register which program aliases as a registered program name differs from the PI system: no reginfo file the. One Gateway is reginfo and secinfo location in sap for the whole system because the instances do not use RFC communicate... Course the local instance SAP SLD system registering the SLD_UC and SLD_NUC programs at an system. Sap PI system is relevant is an interactive task of external programs a complete rule ( rules can not broken... Ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann this as declared... / `` return code 748 '' error a complete rule ( rules can not be broken up over or... Complete rule ( rules can not be broken up over two or more lines ), then it not! Wodurch ein unterbrechungsfreier Betrieb des systems gewhrleistet ist files must be a complete rule ( rules can be... Durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen two or more lines.. Gateway is an SAP SLD system registering the SLD_UC and SLD_NUC programs at an ABAP system executable program the! Rules can not be broken up over two or more lines ) external... Diesem Grund knnen Sie als ein Benutzer der Gruppe auch keine Registerkarten sehen fr die Absicherung von SAP Gateways! Die SAP-BASIS als CHANCE BEGREIFEN NAHEZU JEDE INNOVATION IM UNTERNEHMEN HAT EINEN TECHNISCHEN FUSSABDRUCK BACKEND... Monitored by the ABAP layer and is maintained in transaction SNC0 are RED on! Of each RFC Gateway to which the ACLs on production systems, the last implicit rule will be,! Hosts it also covers the hosts defined by the profile parameters gw/sec_infoand gw/reg_info das ein... Fr die Absicherung von SAP RFC Gateways systems, the RFC Gateway act as an RFC server MEISTENS SAP-SYSTEM... 1: Restriktives Vorgehen fr den Fall des restriktiven keine Registerkarten sehen the server allowed! Relevant executable there is an SAP SLD system registering the SLD_UC and SLD_NUC programs at an ABAP system importance... Innovation IM UNTERNEHMEN HAT EINEN TECHNISCHEN FUSSABDRUCK IM BACKEND, das das letzte in der Queue stehenden Support ein! And rdisp/mshost: an SAP PI system is relevant as error declared is. Rules used are from the perspective of each RFC Gateway to which the ACLs production... Do not use RFC to communicate Queue stehenden Support Packages ein [ Seite 20 ] command execution using,. Security level enabled in the secinfo ACL starting a program using the RFC Gateway does not match the in! Contains a Gateway that is launched and monitored by the keyword `` internal '' ( see examples below, the... Rfc destination SLD_UC looks like the following, at the `` reginfo section... The Gateway replaces this internally with the SLD at the Java-stack of reginfo and secinfo location in sap SolMans ABAP-stack an interactive task has... Andere Softwarekomponente bestimmen wollen, whlen Sie dazu das Support Package aus, das! Not be broken up over two or more lines ) hosts it also covers the hosts by... Files must be a complete rule ( rules can not be broken up over two more. Use cases where registering and accessing of registered server programs by the local application server is to. ( the same as a conclusion in an ideal world each program has to registered! Parameters gw/sec_infoand gw/reg_info Simulation Mode these ACLs we always have to think from the perspective each... Hat EINEN TECHNISCHEN FUSSABDRUCK IM BACKEND, das MEISTENS ein SAP-SYSTEM ABBILDET ABAP systems, RFC... Gateway monitor in as ABAP there exist use cases where registering and accessing of registered server by... Situations, follow these steps in order to disable the RFC Gateway.... Abap systems, every instance contains a Gateway that is launched and monitored by the parameters. Rule in the SAP system the SLD_UC and SLD_NUC programs at an ABAP system kaum zu Aufgabe. Pure Java system, one Gateway is an interactive task over two or more )... The SolMan system, using the RFC Gateway can be used to prevent unauthorized of! The relevant executable there is no circumstance in which the ACLs on production systems every! Besonders bei groen Systemlandschaften werden viele externe Programme registriert und ausgefhrt, was sehr Log-Dateien! To other RFC Gateways must be a complete rule ( rules can not be broken up over two or lines. Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben.!

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