PT-2020-8470 · Unknown · Opentmpfiles

Orlitzky · Published 2020-10-26 · Updated 2020-10-30 · CVE-2017-18925

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: opentmpfiles versions 0.3.1 and earlier

Description: The issue allows local users to take ownership of arbitrary files due to mishandled d entries, which enables a symlink attack.

Recommendations: For versions 0.3.1 and earlier, consider restricting file access permissions to prevent unauthorized ownership changes until a patch is available. As a temporary workaround, consider implementing additional file system monitoring to detect and prevent symlink attacks.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2017-18925

Affected Products

Opentmpfiles

References · 7

• 🔥 https://github.com/OpenRC/opentmpfiles/issues/4 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-18925 · Security Note
• https://cve.org/CVERecord?id=CVE-2017-18925 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-18925 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18925 · Vendor Advisory
• https://t.me/cibsecurity/15587 · Telegram Post