OS Command Injection in Zeroshell - CVE-2020-29390
Published: November 30, 2020 / Updated: December 3, 2020
Vulnerability identifier: #VU48778
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-29390
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ZeroShell
Affected software:
Zeroshell
Zeroshell
Detailed vulnerability 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 "StartSessionSubmitL" parameter in "/cgi-bin/kerbynet". A remote unauthenticated 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.
How to mitigate CVE-2020-29390
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.