Cri-o: /etc/passwd tampering privesc
CVE-2022-4318

7.8HIGH

Key Information:

Vendor
Red Hat
Status
Red Hat Openshift Container Platform 4.11
Red Hat Openshift Container Platform 4.12
Red Hat Enterprise Linux 9
Vendor
CVE Published:
25 September 2023

Summary

A vulnerability in CRI-O allows attackers to insert arbitrary lines into the /etc/passwd file by leveraging specially crafted environment variables. This can lead to unauthorized access and potential elevation of privileges in the system.

Affected Version(s)

Red Hat OpenShift Container Platform 4.11 0:1.24.4-10.rhaos4.11.git1ed5ac5.el8

Red Hat OpenShift Container Platform 4.12 0:1.25.2-9.rhaos4.12.git0a083f9.el9

References

https://access.redhat.com/errata/RHSA-2023:1033
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:1503
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2022-4318
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

Red Hat would like to thank Burt Holzman (Fermilab) for reporting this issue.
.