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VULNERABILITIES

CVE-2011-2883 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928 CVE
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions
citrix access gateway
8.1
9.0
9.1

CPE

  • cpe:2.3:a:citrix:access_gateway:8.1:*:enterprise:*:*:*:*:*
  • cpe:2.3:a:citrix:access_gateway:9.0:*:enterprise:*:*:*:*:*
  • cpe:2.3:a:citrix:access_gateway:9.1:*:enterprise:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2011-2883
NVD Published Date:
Jul 21, 2011
NVD Last Modified:
Jun 16, 2026
Source:
[email protected]
CVE-2011-2883 Details - Not Deferred