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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-3447
• openstack/nova@ce4b2e2
• openstack/nova@d9577ce
• https://bugs.launchpad.net/nova/+bug/1031311
• https://bugzilla.redhat.com/show_bug.cgi?id=845106
• https://exchange.xforce.ibmcloud.com/vulnerabilities/77539
• https://review.openstack.org/#/c/10953/
• http://www.openwall.com/lists/oss-security/2012/08/07/1
• https://github.com/pypa/advisory-database/tree/main/vulns/nova/PYSEC-2012-21.yaml
• https://web.archive.org/web/20120824003029/http://www.securityfocus.com/bid/54869