Eric S. Raymond Fetchmail up to 6.3.5 TLS Encryption input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Eric S. Raymond Fetchmail up to 6.3.5. This affects an unknown function of the component TLS Encryption Handler. The manipulation results in input validation. This vulnerability is reported as CVE-2006-5867. The attack requires a local approach. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Eric S. Raymond Fetchmail up to 6.3.5. Affected is some unknown functionality of the component TLS Encryption Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

fetchmail before 6.3.6-rc4 does not properly enforce TLS and may transmit cleartext passwords over unsecured links if certain circumstances occur, which allows remote attackers to obtain sensitive information via man-in-the-middle (MITM) attacks.

The weakness was disclosed 01/08/2007 by Isaac Wilcox (Website). The advisory is available at fetchmail.berlios.de. This vulnerability is traded as CVE-2006-5867 since 11/14/2006. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at fetchmail.berlios.de. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 24346 (Debian DSA-1259-1 : fetchmail - programming error), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156180 (Oracle Enterprise Linux Update for Fetchmail (ELSA-2007:0018)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at developer.berlios.de. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (31413), Tenable (24346), SecurityFocus (BID 21903†), OSVDB (31836†) and Secunia (SA23631†). The entries VDB-1930, VDB-2801 and VDB-34128 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.8
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 24346
Nessus Name: Debian DSA-1259-1 : fetchmail - programming error
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58014
OpenVAS Name: Debian Security Advisory DSA 1259-1 (fetchmail)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: developer.berlios.de

Timelineinfo

11/14/2006 🔍
12/31/2006 +47 days 🔍
12/31/2006 +0 days 🔍
01/06/2007 +6 days 🔍
01/08/2007 +2 days 🔍
01/09/2007 +1 days 🔍
01/14/2007 +5 days 🔍
01/16/2007 +2 days 🔍
02/14/2007 +28 days 🔍
02/15/2007 +1 days 🔍
03/15/2021 +5142 days 🔍

Sourcesinfo

Advisory: fetchmail.berlios.de
Researcher: Isaac Wilcox
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-5867 (🔍)
GCVE (CVE): GCVE-0-2006-5867
GCVE (VulDB): GCVE-100-2802

OVAL: 🔍

X-Force: 31413
SecurityFocus: 21903 - Fetchmail Multiple Password Information Disclosure Vulnerabilities
Secunia: 23631 - Fetchmail TLS Configuration Security Issue and "MDA" Denial of Service, Less Critical
OSVDB: 31836 - Fetchmail mda Message Refusal DoS
Vulnerability Center: 14019 - Fetchmail before 6.3.6-rc4 May Transmit Cleartext Passwords Over Unsecured Links, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/09/2007 13:43
Updated: 03/15/2021 07:33
Changes: 01/09/2007 13:43 (86), 06/07/2017 16:01 (8), 03/15/2021 07:30 (3), 03/15/2021 07:33 (1)
Complete: 🔍
Cache ID: 216:3A8:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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