CVE-2018-20685 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.3 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106531 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2019:3702
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h Patch  Third Party Advisory 
https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2 Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html Mailing List  Third Party Advisory 
https://security.gentoo.org/glsa/201903-16 Third Party Advisory 
https://security.gentoo.org/glsa/202007-53
https://security.netapp.com/advisory/ntap-20190215-0001/ Third Party Advisory 
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt Patch  Third Party Advisory 
https://usn.ubuntu.com/3885-1/ Third Party Advisory 
https://www.debian.org/security/2019/dsa-4387 Third Party Advisory 
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch 
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-706 Use of Incorrectly-Resolved Name or Reference cwe source acceptance level NIST  

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Change History

16 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20685
NVD Published Date:
01/10/2019
NVD Last Modified:
07/28/2020
Source:
MITRE