CVE-2011-1430

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-03-16 · updated 2026-06-16
Weakness: CWE-20

Description

The STARTTLS implementation in the server in Ipswitch IMail 11.03 and earlier 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.

Affected products

Ipswitch Imail: through 11.03; 5.0, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 6.00 (+39)

References

http://secunia.com/advisories/43676
http://www.kb.cert.org/vuls/id/555316
http://www.kb.cert.org/vuls/id/MAPG-8DBRD4
http://www.osvdb.org/71020
http://www.securityfocus.com/bid/46767
http://www.vupen.com/english/advisories/2011/0609
https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
http://secunia.com/advisories/43676
http://www.kb.cert.org/vuls/id/555316
http://www.kb.cert.org/vuls/id/MAPG-8DBRD4
http://www.osvdb.org/71020
http://www.securityfocus.com/bid/46767

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