Command injection in Bash - CVE-2016-7543
Published: May 28, 2018 / Updated: May 31, 2018
Vulnerability identifier: #VU13104
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-2016-7543
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Bash
Bash
Detailed vulnerability description
The vulnerability allows a local attacker to execute arbitrary commands on the target system.
The weakness exists due to insufficient validation of user-supplied input. A local attacker can supply specially crafted SHELLOPTS and PS4 environment variables, inject and execute arbitrary commands with root privileges.
How to mitigate CVE-2016-7543
Update to version 4.4.