CVE Catalog

CVE-2000-1134

High
Published: Translated: NVD NIST

Summary

Multiple shell programs on various Unix systems, including tcsh, csh, sh, and bash, follow symlinks when processing << redirects, allowing local users to overwrite files of other users via a symlink attack.

Risk Assessment

An attacker can exploit this vulnerability to overwrite critical files, potentially leading to data loss or system integrity breaches.

Recommendation

It is recommended to update shells to the latest versions and restrict user permissions on files to minimize the risk of attack.

Related vulnerabilities

Original NVD description (English source)

Multiple shell programs on various Unix systems, including (1) tcsh, (2) csh, (3) sh, and (4) bash, follow symlinks when processing << redirects (aka here-documents or in-here documents), which allows local users to overwrite files of other users via a symlink attack.

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