CVE-2016-3096 - Improper Link Resolution Before File Access ('Link Following')

Severity

72%

Complexity

39%

Confidentiality

165%

The create_script function in the lxc_container module in Ansible before 1.9.6-1 and 2.x before 2.0.2.0 allows local users to write to arbitrary files or gain privileges via a symlink attack on (1) /opt/.lxc-attach-script, (2) the archived container in the archive_path directory, or the (3) lxc-attach-script.log or (4) lxc-attach-script.err files in the temporary directory.

The create_script function in the lxc_container module in Ansible before 1.9.6-1 and 2.x before 2.0.2.0 allows local users to write to arbitrary files or gain privileges via a symlink attack on (1) /opt/.lxc-attach-script, (2) the archived container in the archive_path directory, or the (3) lxc-attach-script.log or (4) lxc-attach-script.err files in the temporary directory.

CVSS 3.0 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

Overview

First reported 8 years ago

2016-06-03 14:59:00

Last updated 6 years ago

2018-10-30 16:28:00

Affected Software

Fedora 22

22

Fedora Project Fedora 23

23

Fedora 24

24

Red Hat Ansible 2.0

2.0

Red Hat Ansible 2.0.1

2.0.1

References

FEDORA-2016-28ff51a3f5

Third Party Advisory

FEDORA-2016-65519440f5

Vendor Advisory

FEDORA-2016-ab154c56dd

Vendor Advisory

FEDORA-2016-cd3cf8e7d0

Vendor Advisory

FEDORA-2016-679c4ddd3c

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1322925

Issue Tracking

https://github.com/ansible/ansible/blob/v1.9.6-1/CHANGELOG.md#196-dancing-in-the-street---tbd

Third Party Advisory

https://github.com/ansible/ansible/blob/v2.0.2.0-1/CHANGELOG.md#202-over-the-hills-and-far-away

Patch

https://github.com/ansible/ansible-modules-extras/pull/1941

Patch

https://github.com/ansible/ansible-modules-extras/pull/1941/commits/8c6fe646ee79f5e55361b885b7efed5bec72d4a4

Patch

[ansible-announce] 20160419 Ansible 2.0.2.0 has been released

Third Party Advisory

[ansible-announce] 20160415 Ansible 1.9.6-1 has been released

Third Party Advisory

GLSA-201607-14

Third Party Advisory

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