reginfo and secinfo location in sap

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? It is common and recommended by many resources to define the following rule in a custom prxyinfo ACL: With this, all requests from the local system, as well as all application servers of the same system, will be proxied by the RFC Gateway to any destination or end point. Part 4: prxyinfo ACL in detail Click more to access the full version on SAP for Me (Login . (any helpful wiki is very welcome, many thanks toIsaias Freitas). When editing these ACLs we always have to think from the perspective of each RFC Gateway to which the ACLs are applied to. This ACL is applied on the ABAP layer and is maintained in table USERACLEXT, for example using transaction SM30. This is defined in, which RFC clients are allowed to talk to the Registered Server Program. Bei diesem Vorgehen werden jedoch whrend der Erstellungsphase keine gewollten Verbindungen blockiert, wodurch ein unterbrechungsfreier Betrieb des Systems gewhrleistet ist. 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 E.g "RegInfo" file entry, P TP=BIPREC* USER=* HOST=* NO=1 CANCEL=* ACCESS=* A custom allow rule has to be maintained on the proxying RFC Gateway only. 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. From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. Observation: in emergency situations, follow these steps in order to disable the RFC Gateway security. CANNOT_DETERMINE_EPS_PARCEL: Die OCS-Datei ist in der EPS-Inbox nicht vorhanden; vermutlich wurde sie gelscht. 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. To avoid disruptions when applying the ACLs on production systems, the RFC Gateway has a Simulation Mode. The secinfo file has rules related to the start of programs by the local SAP instance. In einem Nicht-FCS-System (offizieller Auslieferungsstand) knnen Sie kein FCS Support Package einspielen. 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). From my experience the RFC Gateway security is for many SAP Administrators still a not well understood topic. Terms of use | Hello Venkateshwar, thank you for your comment. Whlen Sie dazu das Support Package aus, das das letzte in der Queue sein soll. Access to the ACL files must be restricted. This is required because the RFC Gateway copies the related rule to the memory area of the specific registration. 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. . RFC had issue in getting registered on DI. Hint: Besides the syntax check, it also provides a feature supporting rule creation by predicting rules out of an automated gateway log analysis. 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. if the server is available again, this as error declared message is obsolete. 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. The notes1408081explain and provide with examples of reginfo and secinfo files. 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 location of the reginfo ACL file is specified by the profile parameter gw/reg_info. 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). 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. 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). Its functions are then used by the ABAP system on the same host. Da das aber gewnscht ist, mssen die Zugriffskontrolllisten schrittweise um jedes bentigte Programm erweitert werden. Besttigen Sie den auftauchenden Hinweis und vergeben Sie fr die gewnschten Gruppen zumindest das folgende Recht: Allgemein --> Allgemein --> Objekte Anzeigen. There are various tools with different functions provided to administrators for working with security files. Despite this, system interfaces are often left out when securing IT systems. 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. 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. 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. As we learned in part 4 SAP introduced the following internal rule in the in the prxyinfo ACL: P TP=cpict2 ACCESS=ld8060,localhost CANCEL=ld8060,localhost. 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). The RFC Gateway does not perform any additional security checks. TP is a mandatory field in the secinfo and reginfo files. Auerdem nimmt die Datenbank auch neue Informationen der Anwender auf und sichert diese ab. three months) is necessary to ensure the most precise data possible for the . Part 3: secinfo ACL in detail. While it is common and recommended by many resources to define this rule in a custom secinfo ACL as the last rule, from a security perspective it is not an optimal approach. Auch hier ist jedoch ein sehr groer Arbeitsaufwand vorhanden. 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. The SAP note1689663has the information about this topic. 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. You can define the file path using profile parameters gw/sec_infoand gw/reg_info. Now 1 RFC has started failing for program not registered. This means that if the file is changed and the new entries immediately activated, the servers already logged on will still have the old attributes. A rule defines. Only clients from domain *.sap.com are allowed to communicate with this registered program (and the local application server too). Only clients from the local application server are allowed to communicate with this registered program. This parameter will allow you to reproduce the RFC Gateway access and see the TP and HOST that the access is using hence create the rules in the reginfo or secinfo file; 5)The rules defined in the reginfo or secinfo file can be reviewed in colored syntactic correctness. Part 7: Secure communication 1. other servers had communication problem with that DI. Remember the AS ABAP or AS Java is just another RFC client to the RFC Gateway. Then the file can be immediately activated by reloading the security files. Giving more details is not possible, unfortunately, due to security reasons. 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). The secinfo security file is used to prevent unauthorized launching of external programs. Accessing reginfo file from SMGW a pop is displayed thatreginfo at file system and SAP level is different. To assign the new settings to the registered programs too (if they have been changed at all), the servers must first be deregistered and then registered again. In order to figure out the reason that the RFC Gateway is not allowing the registered program, following some basics steps that should be managed during the creation of the rules: 1)The rules in the files are read by the RFC Gateway from the TOP to the BOTTOM hence it is important to check the previous rules in order to check if the specific problem does not fit some previously rule. This is defined in, which servers are allowed to cancel or de-register the Registered Server Program. Example Example 1: In other words, the SAP instance would run an operating system level command. 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. While it is common and recommended by many resources to define this rule in a custom reginfo ACL as the last rule, from a security perspective it is not an optimal approach. Obviously, if the server is unavailable, an error message appears, which might be better only just a warning, some entries in reginfo and logfile dev_rd shows (if the server is noch reachable), NiHLGetNodeAddr: to get 'NBDxxx' failed in 5006ms (tl=2000ms; MT; UC)*** ERROR => NiHLGetNodeAddr: NiPGetHostByName failed (rc=-1) [nixxhl.cpp 284]*** ERROR => HOST=NBDxxx invalid argument in line 9 (NIEHOST_UNKNOWN) [gwxxreg.c 2897]. 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 Stand-alone RFC Gateway: As a dedicated RFC Gateway serving for various RFC clients or as an additional component which may be used to extend a SAP NW AS ABAP or AS Java system. A deny all rule would render the simulation mode switch useless, but may be considered to do so by intention. 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')). IP Addresses (HOST=, ACCESS= and/or CANCEL=): You can use IP addresses instead of host names. This procedure is recommended by SAP, and is described in Setting Up Security Settings for External Programs. This opensb the Gateway ACL Editor, where you can display the relevant files.. To enable system-internal communication, the files must contain the . Please pay special attention to this phase! This publication got considerable public attention as 10KBLAZE. You have a non-SAP tax system that needs to be integrated with SAP. The order of the remaining entries is of no importance. secinfo und reginfo Generator anfordern Mglichkeit 1: Restriktives Vorgehen Fr den Fall des restriktiven Lsungsansatzes werden zunchst nur systeminterne Programme erlaubt. The RFC Gateway can be seen as a communication middleware. The RFC Gateway can be used to proxy requests to other RFC Gateways. You can define the file path using profile parameters gw/sec_info and gw/reg_info. Aus diesem Grund knnen Sie als ein Benutzer der Gruppe auch keine Registerkarten sehen. Wechseln Sie dazu auf die gewnschte Registerkarte (im Beispiel ist das Universen), whlen Sie Verwalten --> Sicherheit auf oberster Ebene --> Alle Universen (je nach Registerkarte unterscheidet sich der letzte Punkt). If the domain name system (DNS) servername cannot be resolved into an IP address, the whole line is discarded and results in a denial. Bei groen Systemlandschaften ist dieses Verfahren sehr aufwndig. 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. If this addition is missing, any number of servers with the same ID are allowed to log on. There are two different syntax versions that you can use (not together). There is a hardcoded implicit deny all rule which can be controlled by the parameter gw/sim_mode. In addition, the existing rules on the reginfo/secinfo file will be applied, even on Simulation Mode. A LINE with a HOST entry having multiple host names (e.g. This would cause "odd behaviors" with regards to the particular RFC destination. Diese durchzuarbeiten und daraufhin Zugriffskontrolllisten zu erstellen, kann eine kaum zu bewltigende Aufgabe darstellen. 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 means that the sequence of the rules is very important, especially when using general definitions. The name of the registered program will be TAXSYS. Someone played in between on reginfo file. The default configuration of an ASCS has no Gateway. Hinweis: Whlen Sie ber den Button und nicht das Dropdown-Men Gewhren aus! 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. 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). Sie knnen die Queue-Auswahl reduzieren. All other programs starting with cpict4 are allowed to be started (on every host and by every user). Read more. 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. To display the security files, use the gateway monitor in AS ABAP (transaction SMGW). Die jetzt nicht mehr zur Queue gehrenden Support Packages sind weiterhin in der Liste sichtbar und knnen auch wieder ausgewhlt werden. Maybe some security concerns regarding the one or the other scenario raised already in you head. Part 4: prxyinfo ACL in detail. The secinfosecurity file is used to prevent unauthorized launching of external programs. Wir untersttzen Sie gerne bei Ihrer Entscheidungen. 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 secinfo file from the CI would look like the below: In case you dont want to use the keywords local and internal, youll have to manually specify the hostnames. The Gateway is a central communication component of an SAP system. Accessing reginfo file from SMGW a pop is displayed that reginfo at file system and SAP level is different. If these profile parameters are not set the default rules would be the following allow all rules: reginfo: P TP=* There are three places where we can find an RFC Gateway: The RFC Gateway is by default reachable via the services sapgw and sapgws which can be mapped to the ports 33 and 48. Da das aber gewnscht ist, mssen die Zugriffskontrolllisten schrittweise um jedes bentigte Programm erweitert werden. Help with the understanding of the RFC Gateway ACLs (Access Control Lists) and the Simulation Mode, in order to help prepare production systems to have these security features enabled without disruptions. Thank you! open transaction SMGW -> Goto -> expert functions -> Display secinfo/reginfo Green means OK, yellow warning, red incorrect. I think you have a typo. It seems to me that the parameter is gw/acl_file instead of ms/acl_file. 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. 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. 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). 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. In a pure Java system, one Gateway is sufficient for the whole system because the instances do not use RFC to communicate. there are RED lines on secinfo or reginfo tabs, even if the rule syntax is correct. 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. 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. 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. Wenn Sie die Queue fr eine andere Softwarekomponente bestimmen wollen, whlen Sie Neue Komponente. Notice that the keyword "internal" is available at a Standalone RFC Gateway (like the RFC Gateway process that runs at an SCS or ASCS instance) only after a certain SAP kernel version. USER=hugo, USER-HOST=hw1234, HOST=hw1414, TP=prog: User hugo is authorized to run program prog on host hw1414, provided he or she has logged on to the gateway from host hw1234. 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. Part 5: Security considerations related to these ACLs. Sein soll follow these steps in order to disable the RFC Gateway can be used prevent. This registered program will be TAXSYS an operating system level command des restriktiven Lsungsansatzes zunchst... Tp is a central communication component of an ASCS has no Gateway keine Registerkarten sehen Addresses ( HOST= ACCESS=... External programs of the specific registration is very important, especially when using general definitions the path. Do not use RFC to communicate with this registered program ( and local... 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