CVE-2018-20684
HIGH severity · CVSS 7.5 · Improper input validation
7.5CVSS HIGH
Summary
In WinSCP before 5.14 beta, due to missing validation, the scp implementation would accept arbitrary files sent by the server, potentially overwriting unrelated files. This affects TSCPFileSystem::SCPSink in core/ScpFileSystem.cpp.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)3%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54 ↗
Additional information
- NVD record
- https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54Patch
- https://winscp.net/tracker/1675Patch
- https://winscp.net/eng/docs/historyAdvisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtAdvisory
- http://www.securityfocus.com/bid/106526Advisory
- https://www.oracle.com/security-alerts/cpujan2020.html