CVE-2011-2883

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.

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 0.48%
Third-Party Advisory idefense.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928 third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-2883?
CVE-2011-2883 has been scored as a critical severity vulnerability.
How to fix CVE-2011-2883?
To fix CVE-2011-2883, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2883 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2883 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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