Description
The toStaticHTML function in Microsoft Internet Explorer 8, and the SafeHTML function in Microsoft Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010, Office SharePoint Server 2007 SP2, Groove Server 2010, and Office Web Apps, allows remote attackers to bypass the cross-site scripting (XSS) protection mechanism and conduct XSS attacks via a crafted use of the Cascading Style Sheets (CSS) @import rule, aka "HTML Sanitization Vulnerability," a different vulnerability than CVE-2010-1257.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Microsoft Internet Explorer 8 - 'toStaticHTML()' HTML Sanitization Bypass EDB-34478 · remote · Aug 16, 2010 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.wooyun.org/bug.php?action=view&id=189
- MS10-071 vendor-advisory
- 20100814 IE8 toStaticHtml Bypass mailing-list
- oval:org.mitre.oval:def:7297 vdb-entry signature
- MS10-072 vendor-advisory
- TA10-285A third-party-advisory
- http://support.avaya.com/css/P8/documents/100113324