FreeBSD up to 13-RELEASE-p4 Setting cap_net privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in FreeBSD up to 13-RELEASE-p4. This vulnerability affects the function cap_net of the component Setting Handler. The manipulation results in privileges management. This vulnerability is cataloged as CVE-2023-5978. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in FreeBSD up to 13-RELEASE-p4 (Operating System). Affected is the function cap_net of the component Setting Handler. 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:

In versions of FreeBSD 13-RELEASE before 13-RELEASE-p5, under certain circumstances the cap_net libcasper(3) service incorrectly validates that updated constraints are strictly subsets of the active constraints.  When only a list of resolvable domain names was specified without setting any other limitations, an application could submit a new list of domains including include entries not previously listed.  This could permit the application to resolve domain names that were previously restricted.

The weakness was shared 11/08/2023 by Shawn Webb. The advisory is shared for download at security.freebsd.org. This vulnerability is traded as CVE-2023-5978 since 11/07/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 13-RELEASE-p5 eliminates this vulnerability.

Once again VulDB remains the best source 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: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: 🔍

Upgrade: FreeBSD 13-RELEASE-p5

Timelineinfo

11/07/2023 🔍
11/08/2023 +1 days 🔍
11/08/2023 +0 days 🔍
12/05/2023 +27 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Researcher: Shawn Webb
Status: Confirmed

CVE: CVE-2023-5978 (🔍)
GCVE (CVE): GCVE-0-2023-5978
GCVE (VulDB): GCVE-100-244764

Entryinfo

Created: 11/08/2023 10:23
Updated: 12/05/2023 08:50
Changes: 11/08/2023 10:23 (42), 12/05/2023 08:50 (11)
Complete: 🔍
Cache ID: 216::103

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