PT-2020-8912 · Openrc+1 · Openrc+1

Orlitzky · Published 2020-10-27 · Updated 2020-11-02 · CVE-2018-21269

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions OpenRC versions 0.42.1 and earlier

Description The issue allows local users to take ownership of arbitrary files because a non-terminal path component can be a symlink. This is related to the checkpath function in OpenRC.

Recommendations For OpenRC versions 0.42.1 and earlier, consider restricting access to the checkpath function until a patch is available. As a temporary workaround, avoid using symlinks as non-terminal path components to minimize the risk of exploitation.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2018-21269

Affected Products

Debian

Openrc

References · 8

• 🔥 https://github.com/OpenRC/openrc/issues/201 · Exploit
• https://osv.dev/vulnerability/ALPINE-CVE-2018-21269 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-21269 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21269 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-21269 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-21269 · Vendor Advisory
• https://security.alpinelinux.org/vuln/CVE-2018-21269 · Note
• https://t.me/cibsecurity/15597 · Telegram Post