CVE-2011-2883

Published: Jul 21, 2011Modified: Apr 29, 2026

9.3

Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability: 8.6 / Impact: 10.0

Source: NVD

Description

The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate.

Affected (3)

Products: Citrix: Access Gateway

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Citrix Access Gateway	Version 8.1
Citrix Access Gateway	Version 9.0
Citrix Access Gateway	Version 9.1

Related CWEs

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (2)

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928

Source: cve@mitre.org

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.