[ERPSCAN-13-002] SAP GRMGApp – XXE and authentication bypass
Application: SAP NetWeaver J2EE
Versions Affected: SAP NetWeaver
Vendor URL: http://www.sap.com
Bugs: Security Bypass, XXE
Vendor response: 14.07.2012
Date of SAP Security Note Published: 08.01.2013
Date of Public Advisory: 28.01.2013
Reference: SAP Security Note 1729293 and 1725390
Authors: Dmitry Chastukhin (ERPScan)
SAP NetWeaver GRMGApp is vulnerable to unauthorized access and has XXE vulnerability.
It is possible for attackers to send any packets to any port of any system including localhost. It means that it is possible, for example, to send any administrative command to Gateway or Message server because the source of the packet will be localhost, and there are no restrictions for localhost. Another example is an attack on other interfaces.
To prevent this issue as well as a plethora of other vulnerabilities that may affect your systems, ERPScan provides the following services: