Link following in Docker

1) Link following

EUVDB-ID: #VU32458

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-6407

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Docker before 1.3.2 allows remote attackers to write to arbitrary files and execute arbitrary code via a (1) symlink or (2) hard link attack in an image archive in a (a) pull or (b) load operation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Docker: 1.3.0 - 1.3.1

CPE2.3

• cpe:2.3:a:docker:docker:1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:docker:docker:1.3.1:*:*:*:*:*:*:*

External links

http://lists.fedoraproject.org/pipermail/package-announce/2014-December/145154.html
http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00009.html
http://secunia.com/advisories/60171
http://secunia.com/advisories/60241
http://www.openwall.com/lists/oss-security/2014/11/24/5
http://docs.docker.com/v1.3/release-notes/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.