Infodrom cfingerd 1.4.1/1.4.2/1.4.3 ALLOW_LINE_PARSING .nofinger memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Infodrom cfingerd 1.4.1/1.4.2/1.4.3. This impacts an unknown function of the file .nofinger of the component ALLOW_LINE_PARSING Handler. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2001-0735. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Infodrom cfingerd 1.4.1/1.4.2/1.4.3. This affects some unknown processing of the file .nofinger of the component ALLOW_LINE_PARSING Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in cfingerd 1.4.3 and earlier with the ALLOW_LINE_PARSING option enabled allows local users to execute arbitrary code via a long line in the .nofinger file.

The bug was discovered 06/21/2001. The weakness was shared 10/18/2001 by Steven Van Acker (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2001-0735. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 14903 (Debian DSA-066-1 : cfingerd - remote exploit), 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 31010 (cfingerd Utilities 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 X-Force (6744), Exploit-DB (20962), Tenable (14903), SecurityFocus (BID 2914†) and OSVDB (13960†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

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Nessus ID: 14903
Nessus Name: Debian DSA-066-1 : cfingerd - remote exploit
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53567
OpenVAS Name: Debian Security Advisory DSA 066-1 (cfingerd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/21/2001 🔍
06/21/2001 +0 days 🔍
06/21/2001 +0 days 🔍
07/11/2001 +20 days 🔍
10/18/2001 +99 days 🔍
10/18/2001 +0 days 🔍
09/29/2004 +1077 days 🔍
12/14/2004 +76 days 🔍
07/09/2014 +3494 days 🔍
10/04/2025 +4105 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Steven Van Acker
Status: Confirmed

CVE: CVE-2001-0735 (🔍)
GCVE (CVE): GCVE-0-2001-0735
GCVE (VulDB): GCVE-100-17499
X-Force: 6744
SecurityFocus: 2914 - cfingerd Utilities Buffer Overflow Vulnerability
OSVDB: 13960 - cfingerd - Utilities - Buffer Overflow Issue
Vulnerability Center: 6487 - Buffer Overflow in Martin Schulze Cfingerd 1.4.1 - 1.4.3 Allows Code Execution, High

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

Entryinfo

Created: 07/09/2014 16:27
Updated: 10/04/2025 16:13
Changes: 07/09/2014 16:27 (74), 06/03/2019 16:17 (6), 01/08/2025 00:48 (19), 10/04/2025 16:13 (2)
Complete: 🔍
Cache ID: 216::103

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