Input validation error in WinSCP - CVE-2018-20684
Published: January 11, 2019
Vulnerability identifier: #VU16945
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-20684
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists in TSCPFileSystem::SCPSink in core/ScpFileSystem.cpp due to insufficient validation of user-supplied input. A remote attacker can send arbitrary files via the server and potentially overwrite unrelated files.
Affected software
WinSCP
How to mitigate CVE-2018-20684
Update to version 5.14 beta.
WinSCP - update to 5.14 beta