Improper input validation in Winscp
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.028 (85.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106526 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54 (Patch, Third Party Advisory)
- winscp.net/eng/docs/history (Release Notes, Vendor Advisory)
- winscp.net/tracker/1675 (Patch, Vendor Advisory)
- sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt (Third Party Advisory, Mitigation)
- www.oracle.com/security-alerts/cpujan2020.html
Frequently asked questions
- What is CVE-2018-20684?
- CVE-2018-20684 is a high-severity vulnerability in Winscp, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-01-10.
- How severe is CVE-2018-20684?
- High severity. CVSS v3 base score is 7.5 out of 10.