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Vulnerability Details : CVE-2011-4318

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.
Publish Date : 2013-03-06 Last Update Date : 2013-03-07
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-4318 unix
ELSA-2013-0520 -- dovecot security and bug fix update (low) oval:org.mitre.oval:def:27675 unix
RHSA-2013:0520 -- dovecot security and bug fix update (Low) oval:org.mitre.oval:def:27001 unix
RHSA-2013:0520: dovecot security and bug fix update (Low) oval:com.redhat.rhsa:def:20130520 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-4318

# Product Type Vendor Product Version Update Edition Language
1 Application Dovecot Dovecot 2.0.0 Version Details Vulnerabilities
2 Application Dovecot Dovecot 2.0.1 Version Details Vulnerabilities
3 Application Dovecot Dovecot 2.0.2 Version Details Vulnerabilities
4 Application Dovecot Dovecot 2.0.3 Version Details Vulnerabilities
5 Application Dovecot Dovecot 2.0.4 Version Details Vulnerabilities
6 Application Dovecot Dovecot 2.0.5 Version Details Vulnerabilities
7 Application Dovecot Dovecot 2.0.6 Version Details Vulnerabilities
8 Application Dovecot Dovecot 2.0.7 Version Details Vulnerabilities
9 Application Dovecot Dovecot 2.0.8 Version Details Vulnerabilities
10 Application Dovecot Dovecot 2.0.9 Version Details Vulnerabilities
11 Application Dovecot Dovecot 2.0.10 Version Details Vulnerabilities
12 Application Dovecot Dovecot 2.0.11 Version Details Vulnerabilities
13 Application Dovecot Dovecot 2.0.12 Version Details Vulnerabilities
14 Application Dovecot Dovecot 2.0.13 Version Details Vulnerabilities
15 Application Dovecot Dovecot 2.0.14 Version Details Vulnerabilities
16 Application Dovecot Dovecot 2.0.15 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Dovecot Dovecot 16

- References For CVE-2011-4318
MLIST [oss-security] 20111118 Re: CVE Request -- Dovecot -- Validate certificate's CN against requested remote server hostname when proxying
MLIST [oss-security] 20111118 Re: CVE Request -- Dovecot -- Validate certificate's CN against requested remote server hostname when proxying
MLIST [dovecot-news] 20111117 v2.0.16 released

- Metasploit Modules Related To CVE-2011-4318

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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