FreeBSD 10.1/10.2/10.3/11.0 libarchive symlink

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FreeBSD 10.1/10.2/10.3/11.0. This affects an unknown part of the component libarchive. The manipulation results in symlink. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in FreeBSD 10.1/10.2/10.3/11.0 (Operating System). It has been classified as problematic. Affected is an unknown functionality of the component libarchive. 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 confidentiality, integrity, and availability.

The weakness was presented 10/05/2016 as FreeBSD-SA-16:31.libarchive as confirmed security advisory (Website). The advisory is shared for download at security.FreeBSD.org. The exploitability is told to be easy. The attack needs to be approached locally. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available. The advisory points out:

Flaws in libarchive's handling of symlinks and hard links allow overwriting files outside the extraction directory, or permission changes to a directory outside the extraction directory.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1036978†). See VDB-92687 and VDB-92686 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
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

10/05/2016 🔍
10/10/2016 +5 days 🔍
10/13/2016 +3 days 🔍
05/19/2019 +948 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: FreeBSD-SA-16:31.libarchive
Status: Confirmed

GCVE (VulDB): GCVE-100-92688
SecurityTracker: 1036978

See also: 🔍

Entryinfo

Created: 10/13/2016 10:11
Updated: 05/19/2019 13:05
Changes: 10/13/2016 10:11 (42), 05/19/2019 13:05 (4)
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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