Dovecot up to 2.0.15 input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Dovecot. It has been declared as critical. This affects an unknown part. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2011-4318. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Dovecot (Mail Server Software). It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, and integrity. CVE summarizes:

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.

The weakness was disclosed 03/06/2013 as Bug 754980 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2011-4318 since 11/04/2011. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 75820 (openSUSE Security Update : dovecot20 (openSUSE-SU-2012:0219-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121093 (CentOS Security Update for Dovecot (CESA-2013:0520)).

Upgrading to version 2.0.14 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71354), Tenable (75820), SecurityFocus (BID 50709†), Secunia (SA46886†) and Vulnerability Center (SBV-34146†). The entries VDB-57517 and VDB-57516 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75820
Nessus Name: openSUSE Security Update : dovecot20 (openSUSE-SU-2012:0219-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881675
OpenVAS Name: CentOS Update for dovecot CESA-2013:0520 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Dovecot 2.0.14

Timelineinfo

11/04/2011 🔍
11/17/2011 +13 days 🔍
11/17/2011 +0 days 🔍
11/17/2011 +0 days 🔍
12/29/2011 +42 days 🔍
03/06/2013 +433 days 🔍
03/06/2013 +0 days 🔍
06/13/2014 +464 days 🔍
03/24/2015 +284 days 🔍
12/29/2021 +2472 days 🔍

Sourcesinfo

Advisory: Bug 754980
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4318 (🔍)
GCVE (CVE): GCVE-0-2011-4318
GCVE (VulDB): GCVE-100-63692

OVAL: 🔍

X-Force: 71354
SecurityFocus: 50709 - Dovecot SSL Certificate 'Common Name' Field Validation Security Bypass Vulnerability
Secunia: 46886 - Dovecot Common Name Verification Security Issue, Less Critical
Vulnerability Center: 34146 - Dovecot Before 2.0.16 Security Compromise due to Improper Server SSL Certificate Validation, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/29/2021 23:45
Changes: 03/24/2015 12:22 (66), 04/09/2017 13:11 (13), 12/29/2021 23:45 (3)
Complete: 🔍
Cache ID: 216:72D:103

Once again VulDB remains the best source for vulnerability data.

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