CVE-2011-1431

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The STARTTLS implementation in qmail-smtpd.c in qmail-smtpd in the netqmail-1.06-tls patch for netqmail 1.06 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

http://inoa.net/qmail-tls/vu555316.patch

http://securityreason.com/securityalert/8144

http://www.kb.cert.org/vuls/id/555316

http://www.kb.cert.org/vuls/id/MAPG-8D9M5Q

http://www.postfix.org/CVE-2011-0411.html

http://www.securityfocus.com/archive/1/516901

http://www.securityfocus.com/bid/46767

http://www.vupen.com/english/advisories/2011/0612

https://exchange.xforce.ibmcloud.com/vulnerabilities/65932

Details

Source: MITRE

Published: 2011-03-16

Updated: 2017-08-17

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
52611SMTP Service STARTTLS Plaintext Command InjectionNessusSMTP problems
medium