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5.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Dovecot up to 1.2.15/2.1.15. It has been declared as problematic. Impacted is an unknown function of the component IMAP4/POP3. Executing a manipulation as part of SSL/TLS Handshake can lead to improper authentication. This vulnerability appears as CVE-2014-3430. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Dovecot up to 1.2.15/2.1.15 (Mail Server Software). This vulnerability affects some unknown processing of the component IMAP4/POP3. The manipulation as part of a SSL/TLS Handshake leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect availability. CVE summarizes:

Dovecot 1.1 before 2.2.13 and dovecot-ee before 2.1.7.7 and 2.2.x before 2.2.12.12 does not properly close old connections, which allows remote attackers to cause a denial of service (resource consumption) via an incomplete SSL/TLS handshake for an IMAP/POP3 connection.

The weakness was presented 05/11/2014 by Henri Salo as v2.2.13 released as not defined posting (Mailing List). The advisory is shared for download at dovecot.org. This vulnerability was named CVE-2014-3430 since 05/07/2014. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

If SSL/TLS handshake was started but wasn't finished, the login process attempted to eventually forcibly disconnect the client, but failed to do it correctly. This could have left the connections hanging arond for a long time.

The vulnerability scanner Nessus provides a plugin with the ID 74048 (Fedora 20 : dovecot-2.2.13-1.fc20 (2014-6338)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122196 (Fedora Security Update for dovecot (FEDORA-2014-6331)).

Upgrading to version 2.2.13 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93081), Tenable (74048), SecurityFocus (BID 67306†), Secunia (SA59051†) and Vulnerability Center (SBV-44639†). Once again VulDB remains the best source for vulnerability data.

Not Affected

• Dovecot up to 1.0

Productinfo

Type

• Mail Server Software

Name

• Dovecot

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.2.11
• 1.2.12
• 1.2.13
• 1.2.14
• 1.2.15
• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4
• 2.1.5
• 2.1.6
• 2.1.7
• 2.1.8
• 2.1.9
• 2.1.10
• 2.1.11
• 2.1.12
• 2.1.13
• 2.1.14
• 2.1.15

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 74048
Nessus Name: Fedora 20 : dovecot-2.2.13-1.fc20 (2014-6338)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 702954
OpenVAS Name: Debian Security Advisory DSA 2954-1 (dovecot - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Dovecot 2.2.13

Timelineinfo

05/07/2014 🔍
05/09/2014 +2 days 🔍
05/09/2014 +0 days 🔍
05/11/2014 +2 days 🔍
05/11/2014 +0 days 🔍
05/14/2014 +3 days 🔍
05/19/2014 +5 days 🔍
05/23/2014 +4 days 🔍
05/26/2014 +3 days 🔍
06/11/2014 +16 days 🔍
12/17/2024 +3842 days 🔍

Sourcesinfo

Advisory: v2.2.13 released
Researcher: Henri Salo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3430 (🔍)
GCVE (CVE): GCVE-0-2014-3430
GCVE (VulDB): GCVE-100-13348

OVAL: 🔍

X-Force: 93081
SecurityFocus: 67306 - Dovecot Denial of Service Vulnerability
Secunia: 59051 - Debian update for dovecot, Less Critical
Vulnerability Center: 44639 - Dovecot Remote DoS via an Incomplete SSL\\TLS Handshake, High

Entryinfo

Created: 05/23/2014 17:48
Updated: 12/17/2024 04:33
Changes: 05/23/2014 17:48 (72), 05/29/2017 08:48 (10), 06/20/2021 12:05 (3), 12/17/2024 04:33 (26)
Complete: 🔍
Cache ID: 216:523:103

Once again VulDB remains the best source for vulnerability data.

Discussion

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