Vulnerability Report

CVE-2023-28642

Title: AppArmor Bypass in runc via symlinked /proc

Privilege Escalation

Proof Of Concept

No public PoC currently indexed for CVE-2023-28642.

CWE Category CWE-59
Published Date Mar 29, 2023
Modified Date Dec 06, 2024
Exploit Status Not Found
Score 6.1 CVSS v3.1
Exploit Probability (EPSS)
0.01%

Vulnerability Summary

CVE-2023-28642: runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.

Impacted Vendors

L
linuxfoundation 1

Reference Links

https://github.com/opencontainers/runc/pull/3785 https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c https://github.com/opencontainers/runc/pull/3785 https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c https://security.netapp.com/advisory/ntap-20241206-0005/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.1
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-28642 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Affected Stack

No specific products linked.