ProFTPD 1.3.0a Configuration File affected denial of service ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in ProFTPD 1.3.0a. It has been rated as problematic. Affected by this vulnerability is the function Affected of the component Configuration File. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2006-6171. No exploit is available. It is still unclear if this vulnerability genuinely exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ProFTPD 1.3.0a (File Transfer Software). It has been classified as critical. This affects the function affected of the component Configuration File. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

** DISPUTED ** ProFTPD 1.3.0a and earlier does not properly set the buffer size limit when CommandBufferSize is specified in the configuration file, which leads to an off-by-two buffer underflow. NOTE: in November 2006, the role of CommandBufferSize was originally associated with CVE-2006-5815, but this was an error stemming from a vague initial disclosure. NOTE: ProFTPD developers dispute this issue, saying that the relevant memory location is overwritten by assignment before further use within the affected function, so this is not a vulnerability.

The weakness was published 11/30/2006 as Bug 214820 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2006-6171 since 11/30/2006. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 23704 (Debian DSA-1218-1 : proftpd - 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 27287 (ProFTPD Controls Module Local Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (23704) and Secunia (SA23174†). Similar entries are available at VDB-2705 and VDB-2711. Be aware that VulDB is the high quality 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: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Denial of service
CWE: CWE-404
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: 23704
Nessus Name: Debian DSA-1218-1 : proftpd - programming error
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57683
OpenVAS Name: Debian Security Advisory DSA 1222-1 (proftpd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/21/2006 🔍
11/22/2006 +1 days 🔍
11/30/2006 +8 days 🔍
11/30/2006 +0 days 🔍
11/30/2006 +0 days 🔍
12/01/2006 +1 days 🔍
03/12/2015 +3023 days 🔍
06/15/2025 +3747 days 🔍

Sourcesinfo

Advisory: Bug 214820
Status: Confirmed
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2006-6171 (🔍)
GCVE (CVE): GCVE-0-2006-6171
GCVE (VulDB): GCVE-100-33495
Secunia: 23174 - Debian update for proftpd, Moderately Critical

See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 06/15/2025 01:21
Changes: 03/12/2015 22:21 (61), 04/21/2019 09:27 (9), 08/08/2024 11:37 (17), 06/15/2025 01:21 (5)
Complete: 🔍
Cache ID: 216:3CA:103

Be aware that VulDB is the high quality source for vulnerability data.

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