CVE-2011-2165

Description

The STARTTLS implementation in WatchGuard XCS 9.0 and 9.1 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

References

Link	Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729	vdb entry
http://secunia.com/advisories/44753	third party advisory
http://www.kb.cert.org/vuls/id/MAPG-8D9M75	us government resource
http://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_1_1/EN_ReleaseNotes_WG_XCS_9_1_TLS_Hotfix.pdf
http://www.kb.cert.org/vuls/id/555316	third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2011-2165?: CVE-2011-2165 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2165?: To fix CVE-2011-2165, 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-2011-2165 being actively exploited in the wild?: It is possible that CVE-2011-2165 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-264 – Permissions, Privileges, and Access Controls

References

Frequently Asked Questions