CVE-2011-2883

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Summary

CVECVE-2011-2883
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-07-21 23:55:04 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 9.3 from [email protected]

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

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Citrix Access Gateway 8.1 All enterprise All
Application Citrix Access Gateway 9.0 All enterprise All
Application Citrix Access Gateway 9.1 All enterprise All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
iDefense Security Intelligence Services - Information Security Services - Verisign af854a3a-2127-422b-91ae-364da2661108 labs.idefense.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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