Short Name |
HTTP:STC:IE:XML-HMAC-BYPASS |
---|---|
Severity |
Medium |
Recommended |
No |
Recommended Action |
Drop |
Category |
HTTP |
Keywords |
XML Signature HMAC Truncation Bypass Vulnerability |
Release Date |
2010/06/08 |
Update Number |
1701 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
This signature detects attempts to exploit a known vulnerability in Microsoft Internet Explorer. An attacker can create a malicious Web site with Web pages containing dangerous XML content, which if accessed by a victim, allows the attacker bypass authentication of certain content.
The IETF and W3C XML Digital Signature Specification is prone to an authentication-bypass vulnerability. Attackers may exploit this issue to forge signatures to arbitrary XML data. This may lead to further attacks. Note that the specification doesn't require implementations to accept all truncation length values. As a result, not all implementations of the XML Digital Signature Specification will be affected by this issue.