Auth bypass in Fujitsu M10-1
CVE-2018-20685
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
Vulnerability class: Broken Access Control
EPSS: 0.037 (88.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (Patch)
- cve@mitre.org (Patch)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (vdb-entry, Broken Link)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20685?
- CVE-2018-20685 is a medium-severity vulnerability in Fujitsu M10-1, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2019-01-10.
- How severe is CVE-2018-20685?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-20685 known to be exploited?
- 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.