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TITLE:
SAP GUI TabOne ActiveX Control Caption List Buffer Overflow

SECUNIA ADVISORY ID:
SA32672

VERIFY ADVISORY:
http://secunia.com/advisories/32672/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
SAP GUI 6.x
http://secunia.com/advisories/product/3337/
SAP GUI 7.x
http://secunia.com/advisories/product/16959/

DESCRIPTION:
Secunia Research has discovered a vulnerability in SAP GUI, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the included
TabOne ActiveX control (sizerone.ocx) when copying tab captions. This
can be exploited to cause a heap-based buffer overflow by e.g. adding
multiple tabs via the "AddTab()" method.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in SAP GUI 6.40 Patch 29 and SAP GUI
7.10 including sizerone.ocx version 7.0.0.16. Other versions may also
be affected.

SOLUTION:
Update to the latest 7.10 PL, which sets the kill-bit for the ActiveX
control.

Users can also set the kill-bit manually by following the procedure
explained in SAP note 1092631.

PROVIDED AND/OR DISCOVERED BY:
Carsten Eiram, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2008-53/

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About:
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Definitions: (Criticality, Where etc.)
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