Input validation error in Nomad - #VU99235
Published: October 22, 2024
Vulnerability identifier: #VU99235
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of case-sensitive characters in Client FS API. A local user with read-fs permissions but not alloc-exec permissions to read files from the secrets dir.
Note, the vulnerability affects installations on case-insensitive file systems, such as Windows, macOS, and Linux with obscure ext4 options enabled.
Affected software
Nomad
Remediation
Install updates from vendor's website.
Nomad - update to 1.9.1