Linux Kernel cfingerd privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel. This issue affects some unknown processing of the component cfingerd. The manipulation results in privileges management. This vulnerability is cataloged as CVE-1999-0243. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel (Operating System) (the affected version unknown). Affected is an unknown part of the component cfingerd. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Linux cfingerd could be exploited to gain root access.

The weakness was shared 01/01/1999. This vulnerability is traded as CVE-1999-0243. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10652 (cfingerd < 1.4.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 31008 (cfingerd Buffer Oveflow Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (10652), SecurityFocus (BID 2576†) and Vulnerability Center (SBV-1957†). The entries VDB-14850 and VDB-17119 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
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: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10652
Nessus Name: cfingerd < 1.4.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/01/1999 🔍
01/01/1999 +0 days 🔍
01/01/1999 +0 days 🔍
04/11/2001 +831 days 🔍
04/16/2001 +5 days 🔍
09/07/2003 +874 days 🔍
06/19/2014 +3938 days 🔍
10/26/2025 +4147 days 🔍

Sourcesinfo

Vendor: kernel.org

Status: Confirmed

CVE: CVE-1999-0243 (🔍)
GCVE (CVE): GCVE-0-1999-0243
GCVE (VulDB): GCVE-100-14304
SecurityFocus: 2576 - cfingerd Format String Vulnerability
Vulnerability Center: 1957 - Linux cfingerd Enables Root Privilege Elevation, High

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

Entryinfo

Created: 06/19/2014 23:18
Updated: 10/26/2025 08:23
Changes: 06/19/2014 23:18 (61), 05/12/2019 12:13 (5), 10/26/2025 08:23 (20)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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