sdiff 2.7 /tmp symlink

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
2.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in sdiff 2.7. Affected is an unknown function of the file /tmp. Performing a manipulation results in symlink. This vulnerability is identified as CVE-2001-0117. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in sdiff 2.7. It has been classified as problematic. This affects an unknown functionality of the file /tmp. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on integrity. The summary by CVE is:

sdiff 2.7 in the diffutils package allows local users to overwrite files via a symlink attack.

The bug was discovered 01/10/2001. The weakness was released 03/12/2001 by FIRST as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is uniquely identified as CVE-2001-0117. The exploitability is told to be difficult. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 61 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5914), SecurityFocus (BID 2191†), OSVDB (1718†) and Vulnerability Center (SBV-21313†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.9
VulDB Temp Score: 2.8
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: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2001 🔍
01/10/2001 +0 days 🔍
01/10/2001 +0 days 🔍
03/12/2001 +61 days 🔍
03/12/2001 +0 days 🔍
03/18/2009 +2928 days 🔍
07/03/2014 +1933 days 🔍
12/14/2024 +3817 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: FIRST
Status: Confirmed

CVE: CVE-2001-0117 (🔍)
GCVE (CVE): GCVE-0-2001-0117
GCVE (VulDB): GCVE-100-16521
CERT: 🔍
X-Force: 5914 - Linux diffutils sdiff symbolic link
SecurityFocus: 2191 - sdiff /tmp File Race Condition Vulnerability
OSVDB: 1718 - sdiff .tmp - File Race Condition Vulnerability
Vulnerability Center: 21313 - Sdiff 2.7 Diffutils Package Local File Overwrite via Symlink Attack, Low

Entryinfo

Created: 07/03/2014 15:29
Updated: 12/14/2024 22:18
Changes: 07/03/2014 15:29 (61), 08/30/2019 20:45 (3), 12/14/2024 22:18 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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