Vulnerability Details : CVE-2011-1431
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.
Exploit prediction scoring system (EPSS) score for CVE-2011-1431
Probability of exploitation activity in the next 30 days: 0.40%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 70 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-1431
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
References for CVE-2011-1431
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http://www.securityfocus.com/bid/46767
Multiple Vendors STARTTLS Implementation Plaintext Arbitrary Command Injection Vulnerability
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https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
Multiple vendors STARTTLS command execution CVE-2011-1575 Vulnerability Report
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http://www.kb.cert.org/vuls/id/MAPG-8D9M5Q
VU#555316 - STARTTLS plaintext command injection vulnerabilityUS Government Resource
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http://www.postfix.org/CVE-2011-0411.html
Plaintext command injection in multiple implementations of STARTTLS (CVE-2011-0411)Exploit;Vendor Advisory
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http://www.securityfocus.com/archive/1/516901
SecurityFocusExploit
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http://www.vupen.com/english/advisories/2011/0612
Webmail | OVH- OVHVendor Advisory
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http://securityreason.com/securityalert/8144
Plaintext injection in STARTTLS (multiple implementations) - CXSecurity.com
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http://www.kb.cert.org/vuls/id/555316
VU#555316 - STARTTLS plaintext command injection vulnerabilityUS Government Resource
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http://inoa.net/qmail-tls/vu555316.patch
Patch
Products affected by CVE-2011-1431
- cpe:2.3:a:frederik_vermeulen:netqmail:1.06:*:*:*:*:*:*:*