OS Command Injection in KornShell - CVE-2019-14868
Published: February 24, 2020
Vulnerability identifier: #VU25547
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-2019-14868
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: David Korn
Affected software:
KornShell
KornShell
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary shell commands on the target system.
The vulnerability exists in the way ksh evaluates certain environment variables . A local user can set a specially crafted environment variable and execute arbitrary OS commands on the target system.
How to mitigate CVE-2019-14868
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.