virt/disk/api.py in OpenStack Compute (Nova) 2012.1.x before 2012.1.2 and Folsom before Folsom-3 allows remote authenticated users to overwrite arbitrary files via a symlink attack on a file in an image that uses a symlink that is only readable by root. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3361.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - virt/disk/api.py in OpenStack Compute (Nova) 2012.1.x before 2012.1.2 and Folsom before Folsom-3 allows
    remote authenticated users to overwrite arbitrary files via a symlink attack on a file in an image that
    uses a symlink that is only readable by root. NOTE: this vulnerability exists because of an incomplete fix
    for CVE-2012-3361. (CVE-2012-3447)

Padraig Brady discovered that the fix for CVE-2012-3361 was incomplete and an authenticated user could still corrupt arbitrary files on the host running Nova. A remote attacker could use this to cause a denial of service or possibly gain privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Fix package dependencies for updates

    - Fix CA cert permissions issue introduced in       2012.1.1-10

    - Split out into more sub packages

    - Update from stable upstream including...

  - Fix metadata file injection with xen

    - Fix affinity filters when hints is None

    - Fix marker behavior for flavors

    - Handle local remote exceptions consistently

    - Fix qcow2 size on libvirt live block migration

    - Fix for API listing of os hosts

    - Avoid lazy loading errors on instance_type

    - Avoid casts in network manager to prevent races

    - Conditionally allow queries for deleted flavours

    - Fix wrong regex in cleanup_file_locks

    - Add net rules to VMs on compute service start

    - Tolerate parsing null connection info in BDM

    - Support EC2 CreateImage API for boot from volume

    - EC2 DescribeImages reports correct rootDeviceType

    - Reject EC2 CreateImage for instance store

    - Fix EC2 CreateImage no_reboot logic

    - Convert remaining network API casts to calls

    - Move where the fixed ip deallocation happens

    - Fix the qpid_heartbeat option so that it's effective

    - Prohibit host file corruption through file injection       (CVE-2012-3447)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
420420	SCA: security update for nova (GHSA-xc4g-7vw8-924h)	Tenable Cloud Security	SCA Checks	high
420420	SCA: security update for nova (GHSA-xc4g-7vw8-924h)	Tenable Self-Hosted Container Security	SCA Checks	high
61643	Ubuntu 11.10 / 12.04 LTS : nova vulnerability (USN-1545-1)	Nessus	Ubuntu Local Security Checks	medium
61615	Fedora 17 : openstack-nova-2012.1.1-15.fc17 (2012-11756)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2012-3447

high

Tenable Plugins

high

high

medium

medium