Input validation error in Bash - CVE-2019-9924
Published: October 15, 2019
Vulnerability identifier: #VU21785
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-9924
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Bash
Bash
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to "rbash" does not prevent the shell user from modifying BASH_CMDS. A local authenticate user can execute any command with the permissions of the shell.
How to mitigate CVE-2019-9924
Install updates from vendor's website.