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CVE-2020-15778

Published: 24 July 2020

** DISPUTED ** scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a great chance of breaking existing workflows."

Notes

AuthorNote
seth-arnold
openssh-ssh1 is provided for compatibility with old devices that
cannot be upgraded to modern protocols. Thus we may not provide security
support for this package if doing so would prevent access to equipment.
mdeslaur
the upstream OpenSSH project will not be fixing this issue as
it may result in breaking existing workflows. As such, we will
not be fixing this issue in Ubuntu.

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
openssh
Launchpad, Ubuntu, Debian
bionic Ignored

focal Ignored

precise Ignored

trusty Ignored

upstream Needs triage

xenial Ignored

openssh-ssh1
Launchpad, Ubuntu, Debian
bionic Ignored

focal Ignored

precise Does not exist

trusty Does not exist

upstream Ignored
(frozen on openssh 7.5p)
xenial Does not exist

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H