CVE-2011-2883

2022-10-0316:15:17

mitre

www.cve.org

cve-2011-2883

nsepa.nsepactrl.1

citrix access gateway

man-in-the-middle

arbitrary code

http header data

crafted certificate

7.3 High

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

35.9%

JSON

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.

References

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