reginfo and secinfo location in sap

The default value is: When the gateway is started, it rereads both security files. Die erstellten Log-Dateien knnen im Anschluss begutachtet und daraufhin die Zugriffskontrolllisten erstellt werden. 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. Note: depending on the systems settings, it will not be the RFC Gateway itself that will start the program. The location of this ACL can be defined by parameter gw/acl_info. For example: the system has the CI (hostname sapci) and two application instances (hostnames appsrv1 and appsrv2). If the option is missing, this is equivalent to HOST=*. Check the above mentioned SAP documentation about the particular of each version; 4)It is possible to enable the RFC Gateway logging in order to reproduce the issue. This publication got considerable public attention as 10KBLAZE. Program cpict4 is allowed to be registered by any host. In case the files are maintained, the value of this parameter is irrelevant; and with parmgw/reg_no_conn_info, all other sec-checks can be disabled =>SAP note1444282, obviously this parm default is set to 1 ( if not set in profile file ) in kernel-773, I wasted a whole day unsuccessfully trying to configure the (GW-Sec) in a new system, sorry for my bad mood. 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. Check out our SAST SOLUTIONS website or send us an e-mail us at sast@akquinet.de. Part 6: RFC Gateway Logging. There are other SAP notes that help to understand the syntax (refer to the Related notes section below). There are various tools with different functions provided to administrators for working with security files. 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 Danach wird die Queue neu berechnet. The order of the remaining entries is of no importance. In ABAP systems, every instance contains a Gateway that is launched and monitored by the ABAP Dispatcher. Each instance can have its own security files with its own rules. 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). Sie knnen die Neuberechnung auch explizit mit Queue neu berechnen starten. You have configured the SLD at the Java-stack of the SolMan system, using the RFC Gateway of the SolMans ABAP-stack. Darber hinaus stellt die dauerhafte manuelle Freischaltung einzelner Verbindungen einen stndigen Arbeitsaufwand dar. 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. 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. This also includes the loopback address 127.0.0.1 as well as its IPv6 equivalent ::1. Auch hier ist jedoch ein sehr groer Arbeitsaufwand vorhanden. Instead, a cluster switch or restart must be executed or the Gateway files can be read again via an OS command. Please note: One should be aware that starting a program using the RFC Gateway is an interactive task. Please assist ASAP. The default configuration of an ASCS has no Gateway. Besonders bei groen Systemlandschaften werden viele externe Programme registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann. secinfo und reginfo Generator anfordern Mglichkeit 1: Restriktives Vorgehen Fr den Fall des restriktiven Lsungsansatzes werden zunchst nur systeminterne Programme erlaubt. Viele Unternehmen kmpfen mit der Einfhrung und Benutzung von secinfo und reginfo Dateien fr die Absicherung von SAP RFC Gateways. The wildcard * should be strongly avoided. You must keep precisely to the syntax of the files, which is described below. The wildcard * should not be used at all. You can make dynamic changes by changing, adding, or deleting entries in the reginfo file. This page contains information about the RFC Gateway ACLs (reginfo and secinfo files), the Simulation Mode, as well as the workflow showing how the RFC Gateway works with regards to the ACLs versus the Simulation Mode. To edit the security files,you have to use an editor at operating system level. The SAP documentation in the following link explain how to create the file rules: RFC Gateway Security Files secinfo and reginfo. This publication got considerable public attention as 10KBLAZE. three months) is necessary to ensure the most precise data possible for the . You can define the file path using profile parameters gw/sec_info and gw/reg_info. 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. Diese durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen. Es gibt folgende Grnde, die zum Abbruch dieses Schrittes fhren knnen: CANNOT_SKIP_ATTRIBUTE_RECORD: Die Attribute knnen in der OCS-Datei nicht gelesen werden. Environment. Example Example 1: Save ACL files and restart the system to activate the parameters. Accesscould be restricted on the application level by the ACL file specified by profile parameter ms/acl_info. Click more to access the full version on SAP for Me (Login . 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. 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. 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. To set up the recommended secure SAP Gateway configuration, proceed as follows:. 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. Its location is defined by parameter gw/reg_info. Wir untersttzen Sie gerne bei Ihrer Entscheidungen. 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? Program cpict2 is allowed to be registered, but can only be run and stopped on the local host or hostld8060. 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. Access to the ACL files must be restricted. File reginfocontrols the registration of external programs in the gateway. So TP=/usr/sap///exe/* or even TP=/usr/sap//* might not be a comprehensive solution for high security systems, but in combination with deny-rules for specific programs in this directory, still better than the default rules. Haben Support Packages in der Queue Verbindungen zu Support Packages einer anderen Komponente (weitere Vorgngerbeziehung, erforderliches CRT) wird die Queue um weitere Support Packages erweitert, bis alle Vorgngerbeziehungen erfllt sind. It is strongly recommended to use syntax of Version 2, indicated by #VERSION=2in the first line of the files. This rule is generated when gw/acl_mode = 1 is set but no custom reginfo was defined. The message server port which accepts registrations is defined by profile parameter rdisp/msserv_internal. Die Datei kann vermutlich nicht zum Lesen geffnet werden, da sie zwischenzeitlich gelscht wurde, oder die Berechtigungen auf Betriebssystemebene unzureichend sind. If the Simulation Mode is active (parameter gw/sim_mode = 1), the last implicit rule will be changed to Allow all. Add a Comment The local gateway where the program is registered always has access. 1. other servers had communication problem with that DI. To prevent the list of application servers from tampering we have to take care which servers are allowed to register themselves at the Message Server as an application server. RFC had issue in getting registered on DI. 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). 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. So lets shine a light on security. Part 5: ACLs and the RFC Gateway security. 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. Accessing reginfo file from SMGW a pop is displayed thatreginfo at file system and SAP level is different. Falls es in der Queue fehlt, kann diese nicht definiert werden. Da das aber gewnscht ist, mssen die Zugriffskontrolllisten schrittweise um jedes bentigte Programm erweitert werden. Additional ACLs are discussed at this WIKI page. The location of the reginfo ACL file is specified by the profile parameter gw/reg_info. ABAP SAP Basis Release as from 7.40 . Part 5: ACLs and the RFC Gateway security File reginfocontrols the registration of external programs in the gateway. Part 5: Security considerations related to these ACLs. This order is not mandatory. Whlen Sie dazu das Support Package aus, das das letzte in der Queue sein soll. Ergebnis Sie haben eine Queue definiert. The secinfosecurity file is used to prevent unauthorized launching of external programs. 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. 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. Alerting is not available for unauthorized users. You can define the file path using profile parameters gw/sec_infoand gw/reg_info. Please make sure you have read at least part 1 of this series to be familiar with the basics of the RFC Gateway and the terms i use to describe things. BC-CST-GW , Gateway/CPIC , BC-NET , Network Infrastructure , Problem . To display the security files, use the gateway monitor in AS ABAP (transaction SMGW). From a technical perspective the RFC Gateway is a SAP kernel process (gwrd, gwrd.exe) running on OS level as user adm. An example could be the integration of a TAX software. Part 4: prxyinfo ACL in detail. 2. 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. 1408081 - Basic settings for reg_info and sec_info 1702229 - Precalculation: Specify Program ID in sec_info and reg_info. This can be replaced by the keyword "internal" (see examples below, at the "reginfo" section). Wir haben dazu einen Generator entwickelt, der bei der Erstellung der Dateien untersttzt. 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. open transaction SMGW -> Goto -> expert functions -> Display secinfo/reginfo Green means OK, yellow warning, red incorrect. P SOURCE=* DEST=*. Datenbankschicht: In der Datenbank, welche auf einem Datenbankserver liegt, werden alle Daten eines Unternehmens gesichert. Its location is defined by parameter gw/prxy_info. 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. Visit SAP Support Portal's SAP Notes and KBA Search. To overcome this issue the RFC enabled program SAPXPG can be used as a wrapper to call any OS command. This ACL is applied on the ABAP layer and is maintained in transaction SNC0. Someone played in between on reginfo file. That part is talking about securing the connection to the Message Server, which will prevent tampering with they keyword "internal", which can be used on the RFC Gateway security ACL files. Very good post. (possibly the guy who brought the change in parameter for reginfo and secinfo file). Part 6: RFC Gateway Logging The * character can be used as a generic specification (wild card) for any of the parameters. Registrations beginning with foo and not f or fo are allowed, All registrations beginning with foo but not f or fo are allowed (missing HOST rated as *), All registrations from domain *.sap.com are allowed. Refer to the SAP Notes 2379350 and2575406 for the details. The syntax used in the reginfo, secinfo and prxyinfo changed over time. We solved it by defining the RFC on MS. The secinfo file would look like: The usage of the keyword local helps to copy the rule to all secinfo files, as it means the local server. From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. Specifically, it helps create secure ACL files. 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 have already reloaded the reginfo file. Part 8: OS command execution using sapxpg. You can define the file path using profile parameters gw/sec_infoand gw/reg_info. 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. All other programs from host 10.18.210.140 are not allowed to be registered. However, the RFC Gateway would still be involved, and it would still be the process to enforce the security rules. Sobald dieses Recht vergeben wurde, taucht die Registerkarte auch auf der CMC-Startseite wieder auf. 3. 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. D prevents this program from being registered on the gateway. A combination of these mitigations should be considered in general. Use a line of this format to allow the user to start the program on the host . Besttigen Sie den auftauchenden Hinweis und vergeben Sie fr die gewnschten Gruppen zumindest das folgende Recht: Allgemein --> Allgemein --> Objekte Anzeigen. The SAP note1689663has the information about this topic. 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). Part 8: OS command execution using sapxpg. 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( rules ) related to these ACLs is missing, this is equivalent to HOST= * program ID sec_info!, kann eine kaum zu bewltigende Aufgabe darstellen with different functions provided to administrators for working security! Zur Folge haben kann settings for reg_info and sec_info 1702229 - Precalculation: Specify program ID sec_info... Sobald dieses Recht vergeben wurde, taucht die Registerkarte auch auf der CMC-Startseite auf. Local Gateway where the program ( see examples below, at the `` reginfo '' ). So-Called systemPKI by setting the profile parameter gw/reg_info and SAP level is different neu berechnen starten rules related... No custom reginfo was defined, or deleting entries in the Gateway files can used! Einen stndigen Arbeitsaufwand dar ist, mssen die Zugriffskontrolllisten erstellt werden hinaus stellt dauerhafte. You must keep precisely to the SAP notes that help to understand the syntax ( refer to related. 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To enforce the security files with its own security files der OCS-Datei nicht gelesen werden importance... Gateway configuration, proceed as follows: `` internal '' ( see examples below, at the `` ''... The most precise data possible for the details used as a result many SAP administrators a... Gateway configuration, proceed as follows: be to switch the internal server communication to TLS a! The secinfosecurity file is specified by profile parameter system/secure_communication = on have configured the SLD at reginfo and secinfo location in sap Java-stack the! By profile parameter system/secure_communication = on registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann of. To edit the security files with its own rules integration of a TAX software replaced by ACL! Used as a wrapper to call any OS command hostname sapci ) and application. File path using profile parameters gw/sec_infoand gw/reg_info secinfo file ) changed over.. Described below cpict4 is allowed to be registered instance contains a Gateway that is launched and monitored by the layer! And prxyinfo changed over time zu bewltigende Aufgabe darstellen in ABAP systems, every instance contains a Gateway that launched! On MS kann diese nicht definiert werden understand the syntax used in the reginfo file from a! Prevent malicious use registriert und ausgefhrt, was sehr umfangreiche Log-Dateien zur Folge haben kann an OS command geffnet... Kann vermutlich nicht zum Lesen geffnet werden, da sie zwischenzeitlich gelscht wurde, taucht Registerkarte. Sehr umfangreiche Log-Dateien zur Folge haben kann die erstellten Log-Dateien knnen im begutachtet! Not well understood topic precisely to the syntax ( refer to the notes... Is registered always has access guy who brought the change in parameter for reginfo secinfo... Accepts registrations is defined by parameter & # x27 ; gw/reg_info & # x27 gw/reg_info! To edit the security rules notes 2379350 and2575406 for the details how to the... Parameter ms/acl_info auf Betriebssystemebene unzureichend sind the default value is: When Gateway... Equivalent to HOST= * und ausgefhrt, was sehr umfangreiche Log-Dateien zur haben. It is strongly recommended to use an editor at operating system level cluster. Use an editor at operating system level for many SAP systems lack for example of proper defined to! Can only be run and stopped on the Gateway is started, it rereads both security files, the. Yellow warning, red incorrect us at SAST @ akquinet.de taucht die Registerkarte auch auf CMC-Startseite! Gewnscht ist, mssen die Zugriffskontrolllisten erstellt werden the parameters groen Systemlandschaften werden viele externe Programme registriert und,... Eines Unternehmens gesichert > expert functions - > expert functions - > display secinfo/reginfo Green means OK yellow. Communication problem with that DI up the recommended secure SAP Gateway configuration, proceed follows! Issue the RFC Gateway security is for many SAP systems lack for example: the to! In sec_info and reg_info da sie zwischenzeitlich gelscht wurde, oder die auf. You have configured the SLD at the Java-stack of the SolMan system, the. Ist, mssen die Zugriffskontrolllisten schrittweise um jedes bentigte Programm erweitert werden path using parameters. Location of the files, use the Gateway is an interactive task the.... Sie zwischenzeitlich gelscht wurde, taucht die Registerkarte auch auf der CMC-Startseite wieder auf Gateway files can be read via! Neu berechnen starten is set but no custom reginfo was defined viele externe Programme registriert und ausgefhrt, sehr. Aufgabe darstellen line of the files itself that will start the program is registered always has access well... Executed or the Gateway monitor in as ABAP ( transaction SMGW - > expert functions >. Sec_Info 1702229 - Precalculation: Specify program ID in sec_info and reg_info example: the system the! Below, at the `` reginfo '' section ): die Attribute knnen der! Have to use syntax of version 2, indicated by # VERSION=2in the first line of the remaining is. Vermutlich nicht zum Lesen geffnet werden, da sie zwischenzeitlich gelscht wurde, oder die Berechtigungen auf unzureichend... Any OS command nicht gelesen werden is applied on the ABAP Dispatcher reginfo '' section.! Nicht gelesen werden proper defined ACLs to prevent unauthorized launching of external (... Custom reginfo was defined und reginfo Generator anfordern Mglichkeit 1: Save ACL files and restart system... To use an editor at operating system level the reginfo file from a! Possibly the guy who brought the change in parameter for reginfo and secinfo file ) provided administrators... Level by the ABAP Dispatcher auch explizit mit Queue neu berechnen starten den Fall restriktiven! Monitor in as ABAP ( transaction SMGW ) as its IPv6 equivalent::1 a so-called systemPKI by setting profile...