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CVE-2018-15664

Published: 23 May 2019

In Docker through 18.06.1-ce-rc2, the API endpoints behind the 'docker cp' command are vulnerable to a symlink-exchange attack with Directory Traversal, giving attackers arbitrary read-write access to the host filesystem with root privileges, because daemon/archive.go does not do archive operations on a frozen filesystem (or from within a chroot).

Notes

AuthorNote
mdeslaur
initial commits caused a regression which then got fixed, see
upstream bug

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
docker.io
Launchpad, Ubuntu, Debian
bionic
Released (18.09.7-0ubuntu1~18.04.3)
cosmic
Released (18.09.7-0ubuntu1~18.10.3)
disco
Released (18.09.7-0ubuntu1~19.04.4)
trusty Does not exist

upstream
Released (18.09.07)
xenial
Released (18.09.7-0ubuntu1~16.04.4)
Patches:
upstream: https://github.com/moby/moby/commit/d089b639372a8f9301747ea56eaf0a42df24016a
upstream: https://github.com/moby/moby/commit/3029e765e241ea2b5249868705dbf9095bc4d529
upstream: https://github.com/moby/moby/commit/fb5fe241b5931c7031fc4aa2ad4ca61159888df1
other: https://github.com/moby/moby/pull/39292

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Local
Attack complexity High
Privileges required Low
User interaction Required
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H