Technical Description

A vulnerability has been identified in IBM Lotus Domino Web Access, which could be exploited by remote attackers to cause a denial of service or take complete control of an affected system. This issue is caused by a buffer overflow error in the "inotes6w.dll" and "dwa7W.dll" ActiveX controls when calling the "InstallBrowserHelperDll()" method while passing an overly long data to the "General_ServerName" property, which could be exploited by remote attackers to execute arbitrary code by tricking a user into visiting a specially crafted web page.

Affected Products

IBM Domino Web Access Upload Module version 7.0.34.1 and prior

IBM Lotus Domino versions 6.x
IBM Lotus Domino versions 7.x
IBM Lotus Domino Web Access 6.x
IBM Lotus Domino Web Access 7.x

Solution

Upgrade to version 8.0.1 or 7.0.4 :
http://www.ibm.com/software/lotus/support/upgradecentral/index.html

References

http://www.vupen.com/english/advisories/2007/4296
http://www-1.ibm.com/support/docview.wss?rs=463&uid=swg21279071
http://www.kb.cert.org/vuls/id/963889

Credits

Vulnerability reported by Elazar Broad and Will Dormann (CERT/CC).

ChangeLog

2007-12-21 : Initial release
2007-12-22 : Updated Description
2008-01-04 : Updated References
2008-01-08 : Updated Solution

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