Unscored severity · published May 23, 2011
CVE-2011-2165
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…
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CVSS
5.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)5.2% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XC
Xcs · Watchguard
9.0; 9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-2165
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-2165
secunia.com
http://secunia.com/advisories/44753
US Government Resource
http://www.kb.cert.org/vuls/id/555316
US Government Resource
http://www.kb.cert.org/vuls/id/MAPG-8D9M75
www.watchguard.com
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
exchange.xforce.ibmcloud.com
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729
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