CVE-2018-20684
UnknownEPSS 2.53%
Last modified
CVE-2018-20684 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.53% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Winscp | Winscp | <= 5.13.7 |
References
- http://www.securityfocus.com/bid/106526Third Party Advisory, VDB Entry
- https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54Patch, Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtMitigation, Third Party Advisory
- https://winscp.net/eng/docs/historyRelease Notes, Vendor Advisory
- https://winscp.net/tracker/1675Patch, Vendor Advisory
- http://www.securityfocus.com/bid/106526Third Party Advisory, VDB Entry
- https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54Patch, Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtMitigation, Third Party Advisory
- https://winscp.net/eng/docs/historyRelease Notes, Vendor Advisory
- https://winscp.net/tracker/1675Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-20684?
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.
How severe is CVE-2018-20684?
Severity scoring for CVE-2018-20684 is pending analysis. The EPSS model estimates a 2.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20684?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-20684?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST