A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-06-06T14:50:02

Updated: 2024-08-04T21:17:31.038Z

Reserved: 2019-02-13T00:00:00

Link: CVE-2019-8320

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-06-06T15:29:01.420

Modified: 2020-08-16T15:15:13.333

Link: CVE-2019-8320

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-03-05T00:00:00Z

Links: CVE-2019-8320 - Bugzilla