CVE-2018-15664 — In Docker through 18

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 d

01What is this vulnerability?

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).

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-05-23T13:58:37.000Z
• Last modified: 2024-08-05T10:01:54.533Z

09References

• bugzilla.suse.com — https://bugzilla.suse.com/show_bug.cgi?id=1096726
• github.com — https://github.com/moby/moby/pull/39252
• www.openwall.com — http://www.openwall.com/lists/oss-security/2019/05/28/1
• www.securityfocus.com — http://www.securityfocus.com/bid/108507
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00066.html
• usn.ubuntu.com — https://usn.ubuntu.com/4048-1/
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1566…
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:1910
• www.openwall.com — http://www.openwall.com/lists/oss-security/2019/08/21/1
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00001.html