Some vulnerabilities have been reported in SAP GUI, which can be exploited by malicious people to compromise a user's system.
1) A boundary error in the kweditcontrol.kwedit.1 (kwedit.dll) ActiveX control when handling the "PrepareToPostHTML()" method can be exploited to cause a stack-based buffer overflow by passing an overly long string (about 1060 bytes) as argument to the affected method.
2) A boundary error in the rfcguisink.rfcguisink.1 ActiveX control when handling the "LaunchGui()" method can be exploited to cause a heap-based buffer overflow by passing an overly long string (around 1800 bytes) as argument to the affected method.
3) A boundary error in the SAPIrRfc ActiveX control (sapirrfc.dll) when handling the "Accept()" method can be exploited to cause a buffer overflow by passing an overly long string as argument to the affected method.
Successful exploitation of the vulnerabilities allows execution of arbitrary code.
Solution: Update to the latest version.
Provided and/or discovered by: 1-2) Mark Litchfield, NGSSoftware
3) Alexandr Polyakov, DSecRG.
Original Advisory: NGS Software:
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Subject: SAP GUI Three ActiveX Control Buffer Overflow Vulnerabilities
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