CVE-2018-20685

5.3 MEDIUM
Published: January 10, 2019 Modified: December 17, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/106531
Source: cve@mitre.org
Broken Link
https://access.redhat.com/errata/RHSA-2019:3702
Source: cve@mitre.org
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Source: cve@mitre.org
Patch Third Party Advisory
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h
Source: cve@mitre.org
Patch
https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
Source: cve@mitre.org
Patch
https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201903-16
Source: cve@mitre.org
Third Party Advisory
https://security.gentoo.org/glsa/202007-53
Source: cve@mitre.org
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190215-0001/
Source: cve@mitre.org
Third Party Advisory
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
Source: cve@mitre.org
Patch Third Party Advisory
https://usn.ubuntu.com/3885-1/
Source: cve@mitre.org
Third Party Advisory
https://www.debian.org/security/2019/dsa-4387
Source: cve@mitre.org
Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Source: cve@mitre.org
Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: cve@mitre.org
Patch Third Party Advisory
http://www.securityfocus.com/bid/106531
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
https://access.redhat.com/errata/RHSA-2019:3702
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201903-16
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.gentoo.org/glsa/202007-53
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190215-0001/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://usn.ubuntu.com/3885-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2019/dsa-4387
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory

28 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.3 / 10.0
EPSS (Exploit Probability)
3.4%
87th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-863 CWE-863

Affected Vendors

redhat canonical fujitsu debian openbsd winscp oracle siemens netapp

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