CVE-2018-20684

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory winscp.net Vendor Advisory winscp.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106526 vdb entry third party advisory
https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54 third party advisory patch
https://winscp.net/eng/docs/history release notes vendor advisory
https://winscp.net/tracker/1675 patch vendor advisory
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt third party advisory mitigation
https://www.oracle.com/security-alerts/cpujan2020.html

Frequently Asked Questions

What is the severity of CVE-2018-20684?
CVE-2018-20684 has been scored as a high severity vulnerability.
How to fix CVE-2018-20684?
To fix CVE-2018-20684, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20684 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-20684 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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