CVE Catalog

CVE-1999-1091

Medium
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
1.28%

69th percentile - higher than 69% of all known CVEs

Summary

UNIX news readers tin and rtin create the /tmp/.tin_log file with insecure permissions and follow symlinks, which allows attackers to modify the permissions of files writable by the user via a symlink attack.

Risk Assessment

An attacker can change permissions of user-owned files, potentially leading to privilege escalation or modification of critical system files.

Recommendation

Update tin and rtin to versions that do not follow symlinks in /tmp or set secure permissions for the .tin_log file.

Related vulnerabilities

Original NVD description (English source)

UNIX news readers tin and rtin create the /tmp/.tin_log file with insecure permissions and follow symlinks, which allows attackers to modify the permissions of files writable by the user via a symlink attack.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS