National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-2883 Detail

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.

Source:  MITRE
Description Last Modified:  07/21/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 9.3 HIGH
Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:citrix:access_gateway:8.1:*:enterprise:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:citrix:access_gateway:9.0:*:enterprise:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:citrix:access_gateway:9.1:*:enterprise:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-2883
NVD Published Date:
07/21/2011
NVD Last Modified:
07/22/2011