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.
References
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-06-06T14:50:02
Updated: 2020-08-16T14:06:04
Reserved: 2019-02-13T00:00:00
Link: CVE-2019-8320
JSON object: View
NVD Information
Status : Modified
Published: 2019-06-06T15:29:01.420
Modified: 2020-08-16T15:15:13.333
Link: CVE-2019-8320
JSON object: View
Redhat Information
No data.
CWE