Privilege escalation in cri-o



| Updated: 2022-05-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-27652
CWE-ID CWE-276
Exploitation vector Local
Public exploit N/A
Vulnerable software
 CRI-O
Web applications / Modules and components for CMS

Vendor CRI-O

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated 12.05.2022

Added fixed version.

1) Incorrect default permissions

EUVDB-ID: #VU62796

Risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-27652

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to containers are incorrectly started with non-empty default permissions within in Moby (Docker Engine). An attacker with access to programs with inheritable file capabilities can elevate those capabilities to the permitted set when execve(2) runs.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CRI-O: 0.0.0 - 1.23.2

CPE2.3 External links

https://github.com/cri-o/cri-o/security/advisories/GHSA-4hj2-r2pm-3hc6
https://bugzilla.redhat.com/show_bug.cgi?id=2066839


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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