#VU50168 OS Command Injection in KLog Server - CVE-2021-3317
Published: January 27, 2021 / Updated: May 12, 2021
Vulnerability identifier: #VU50168
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-3317
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
KLog Server
KLog Server
Software vendor:
klogserver.com
klogserver.com
Description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "shell_exec()" call of async.php script. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.