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CVE-2018-20685

Published: Jan 10, 2019Updated: Dec 17, 2025 Sources: CVE List NVD BDU csafCWE-863
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
3.7%
Top 11.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-863

Affected Products

UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
SolarisOracle Corp.
On-premDatabase
Databases / relational
canonical ltd.commercialGBOperating Systemsaka canonical
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
oracle corp.commercialUSDatabasesaka oracle
and 28 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
oracle.com
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-20685
bugzilla.redhat.com
https://nvd.nist.gov/vuln/detail/CVE-2018-20685
nvd.nist.gov
and 30 more references View all →

Timeline

Published
Jan 10, 2019
Last Updated
Dec 17, 2025

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