IBM AIX/VIOS Unix Domain SO_PEERID privileges assignment

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in IBM AIX and VIOS. It has been rated as critical. Affected by this vulnerability is the function SO_PEERID of the component Unix Domain. The manipulation leads to privileges assignment. This vulnerability is uniquely identified as CVE-2024-27273. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in IBM AIX and VIOS (version unknown) and classified as critical. This issue affects the function SO_PEERID of the component Unix Domain. The manipulation with an unknown input leads to a privileges assignment vulnerability. Using CWE to declare the problem leads to CWE-266. A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

IBM AIX's Unix domain (AIX 7.2, 7.3, VIOS 3.1, and VIOS 4.1) datagram socket implementation could potentially expose applications using Unix domain datagram sockets with SO_PEERID operation and may lead to privilege escalation. IBM X-Force ID: 284903.

The weakness was disclosed by Christian Kohlschuetter. The advisory is shared at ibm.com. The identification of this vulnerability is CVE-2024-27273 since 02/22/2024. The exploitation is known to be difficult. An attack has to be approached locally. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/18/2025). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (284903). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector (IBM Corporation): 🔍

CVSSv2info

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

Exploitinginfo

Class: Privileges assignment
CWE: CWE-266
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

02/22/2024 🔍
05/07/2024 +75 days 🔍
05/08/2024 +0 days 🔍
08/18/2025 +467 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Researcher: Christian Kohlschuetter
Status: Confirmed

CVE: CVE-2024-27273 (🔍)
GCVE (CVE): GCVE-0-2024-27273
GCVE (VulDB): GCVE-100-263417
X-Force: 284903

Entryinfo

Created: 05/08/2024 01:23
Updated: 08/18/2025 17:50
Changes: 05/08/2024 01:23 (66), 08/18/2025 17:50 (13)
Complete: 🔍
Cache ID: 216::103

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

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