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CVE-2023-28642

AppArmor bypass with symlinked /proc in runc

Published: Mar 29, 2023Updated: Dec 6, 2024 Sources: CVE List NVD GHSA BDUCWE-281
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.3%
Top 74.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:CC:LI:LA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-281CWE-59

Affected Products

runcopencontainers
Mixed
Cloud & SaaS / container-orchestration
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
opencontainersoss-projectCloud & SaaSaka oci, open containers
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Discovery
Privilege Escalation
View detailed technique mapping

References

https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c
github.com
https://github.com/opencontainers/runc/pull/3785
github.com
https://github.com/opencontainers/runc/pull/3785
github.com
and 13 more references View all →

Timeline

Published
Mar 29, 2023
Last Updated
Dec 6, 2024

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