Vulnerability Monitor

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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 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.

Published

2011-05-23T22:55:01.553

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	watchguard	xcs	9.0	Yes
Application	watchguard	xcs	9.1	Yes

References

http://secunia.com/advisories/44753 ([email protected])
http://www.kb.cert.org/vuls/id/555316 US Government Resource ([email protected])
http://www.kb.cert.org/vuls/id/MAPG-8D9M75 US Government Resource ([email protected])
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 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729 ([email protected])
http://secunia.com/advisories/44753 (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/555316 US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/MAPG-8D9M75 US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
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 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/67729 (af854a3a-2127-422b-91ae-364da2661108)