HTTP: Microsoft Internet Explorer onreadystatechange Use After Free Vulnerability

This signature detects attempts to exploit a known memory corruption vulnerability in Microsoft Internet Explorer. It is due an error in the handling of deleted or uninitialized HTML objects. A remote attacker can exploit this by enticing a target user to open a maliciously crafted HTML document. In a successful code injection attack, the behavior of the target host is entirely dependent on the intended function of the injected code and executes within the security context of the currently logged in user. In an unsuccessful attack, the application can terminate abnormally.

Extended Description

Use-after-free vulnerability in Microsoft Internet Explorer 5.01 SP4, 6, and 6 SP1 allows remote attackers to execute arbitrary code by changing unspecified properties of an HTML object that has an onreadystatechange event handler, aka "HTML Object Memory Corruption Vulnerability."

References

BugTraq: 39027

CVE: CVE-2010-0491

Short Name

HTTP:STC:IE:ONREADYSTATE

Severity

Major

Recommended

False

Recommended Action

Drop

HTTP: Microsoft Internet Explorer onreadystatechange Use After Free Vulnerability

Extended Description

References

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