FreeBSD up to 4.1.1 kill/renice format string

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in FreeBSD 3.5/3.5.1/4.0/4.1/4.1.1 and classified as problematic. This vulnerability affects unknown code of the component kill/renice. The manipulation leads to format string. This vulnerability is traded as CVE-2000-0998. Furthermore, there is an exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in FreeBSD 3.5/3.5.1/4.0/4.1/4.1.1 (Operating System). It has been rated as critical. This issue affects an unknown part of the component kill/renice. The manipulation with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in top program allows local attackers to gain root privileges via the "kill" or "renice" function.

The bug was discovered 11/01/2000. The weakness was shared 12/11/2000 by FIRST (Website). It is possible to read the advisory at ftp.FreeBSD.org. The identification of this vulnerability is CVE-2000-0998. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 40 days. During that time the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (20377), SecurityFocus (BID 1895†), OSVDB (12801†) and Vulnerability Center (SBV-21841†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/01/2000 🔍
11/01/2000 +0 days 🔍
11/01/2000 +0 days 🔍
12/11/2000 +40 days 🔍
12/11/2000 +0 days 🔍
05/04/2009 +3066 days 🔍
06/30/2014 +1883 days 🔍
09/12/2024 +3727 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.FreeBSD.org
Researcher: FIRST
Status: Not defined

CVE: CVE-2000-0998 (🔍)
GCVE (CVE): GCVE-0-2000-0998
GCVE (VulDB): GCVE-100-16019
SecurityFocus: 1895 - Multiple Vendor top Format String Vulnerability
OSVDB: 12801 - Kernel Memory Access via 'top' Format String
Vulnerability Center: 21841 - FreeBSD 3.5 and 4.0 Through 4.1.1 Local Root Privileges via \, High

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

Entryinfo

Created: 06/30/2014 16:20
Updated: 09/12/2024 06:53
Changes: 06/30/2014 16:20 (63), 09/02/2019 16:07 (3), 09/12/2024 06:53 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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