Permissions, Privileges, and Access Controls in containerd - CVE-2021-32760
Published: July 20, 2021
Vulnerability identifier: #VU54999
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-32760
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: containerd
Affected software:
containerd
containerd
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to archive package allows chmod of file outside of unpack target directory. A remote attacker can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky.
How to mitigate CVE-2021-32760
Install updates from vendor's website.