Code Injection in WinSCP - CVE-2021-3331
Published: January 27, 2021 / Updated: February 3, 2021
Vulnerability identifier: #VU50281
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2021-3331
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can execute arbitrary code on the target system when the URL handler encounters a crafted URL that loads session settings.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
WinSCP
How to mitigate CVE-2021-3331
Install updates from vendor's website.
WinSCP - update to 5.17.10