Secunia Security Advisory - A vulnerability has been reported in Microsoft SharePoint Server 2007 and Windows SharePoint Services 3.0, which can be exploited by malicious people to conduct cross-site scripting attacks.
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TITLE:
Microsoft SharePoint Server / SharePoint Services "help.aspx"
Cross-Site Scripting
SECUNIA ADVISORY ID:
SA39603
VERIFY ADVISORY:
http://secunia.com/advisories/39603/
DESCRIPTION:
A vulnerability has been reported in Microsoft SharePoint Server 2007
and Windows SharePoint Services 3.0, which can be exploited by
malicious people to conduct cross-site scripting attacks.
Input passed via the "cid0" parameter to _layouts/help.aspx is not
properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.
SOLUTION:
Filter malicious characters or character sequences in a proxy.
PROVIDED AND/OR DISCOVERED BY:
High-Tech Bridge SA
ORIGINAL ADVISORY:
Microsoft:
http://www.microsoft.com/technet/security/advisory/983438.mspx
High-Tech Bridge SA:
http://www.htbridge.ch/advisory/xss_in_microsoft_sharepoint_server_2007.html
OTHER REFERENCES:
Microsoft:
http://blogs.technet.com/srd/archive/2010/04/29/sharepoint-xss-issue.aspx
http://blogs.technet.com/msrc/archive/2010/04/29/security-advisory-983438-released.aspx
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