CVE-2012-1858
Description
The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9, Communicator 2007 R2, and Lync 2010 and 2010 Attendee does not properly handle event attributes and script, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted HTML document, aka "HTML Sanitization Vulnerability."
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Microsoft Internet Explorer 9 / SharePoint / Lync - toStaticHTML HTML Sanitizing Bypass (MS12-037/MS12-039/MS12-050)
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| windows | not-affected | | |
| windows | - | not-affected | |
| windows | r2 | not-affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| microsoft | lync | 2010 | |
| microsoft | office_communicator | 2007 | |
| microsoft | internet_explorer | 8 | |
| microsoft | internet_explorer | 9 | |
References
- http://www.us-cert.gov/cas/techalerts/TA12-164A.html
- http://www.us-cert.gov/cas/techalerts/TA12-192A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530
- http://www.us-cert.gov/cas/techalerts/TA12-164A.html
- http://www.us-cert.gov/cas/techalerts/TA12-192A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530
CWEs
CWE-200
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.