HTTP: Microsoft IIS Alternate Data Stream Authentication Bypass
This signature detects attempts to exploit a known vulnerability against Microsoft IIS. Attackers can bypass security authentication restrictions to access information they would otherwise not have access to.
Extended Description
Microsoft Internet Information Services (IIS) is prone to an authentication-bypass vulnerability because it fails to properly enforce access restrictions on certain requests to a site that requires authentication. An attacker can exploit this issue to gain unauthorized access to protected resources, which may lead to other attacks. This issue affects IIS 5.1; other 5.x versions may also be affected. Please note that this issue does not affect versions 6.x and 7.x.
Short Name
HTTP:IIS:IIS-ADS-BYPASS
Severity
Major
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
Alternate Authentication Bypass Data IIS Microsoft Stream bid:41314
Release Date
07/08/2010
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown