{"id":"CVE-2015-6927","aliases":["DEBIAN-CVE-2015-6927","DSA-3357-1","EUVD-2015-6861","GHSA-h76c-22cc-xhhx"],"status":"published","title":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root...","description":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.","severity":{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00502,"percentile":0.43219,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-59"],"published":"2015-09-13T00:00:00Z","modified":"2026-06-17T00:31:36Z","fixes":[{"ecosystem":"Debian:8","package":"vzctl","fixed_in":["4.8-1+deb8u2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:8","package":"vzctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8-1+deb8u2"}]}],"versions":["4.8-1","4.8-1+deb8u1"]}],"products":[{"vendor":"openvz","product":"vzctl"}],"references":[{"url":"https://openvz.org/Download/vzctl/4.9.4","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://security.gentoo.org/glsa/201701-30","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"http://www.debian.org/security/2015/dsa-3357","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"https://src.openvz.org/projects/OVZL/repos/vzctl/commits/9e98ea630ac0e88b44e3e23c878a5166aeb74e1c","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-6927"},{"url":"https://github.com/advisories/GHSA-h76c-22cc-xhhx"}],"sources":{"cve":[{"id":"CVE-2015-6927","description":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.","status":"published","published":"2015-09-28T20:00:00Z","modified":"2024-08-06T07:36:34.589Z","updated_at":"2026-11-02T14:35:42.984856Z"}],"euvd":[{"id":"EUVD-2015-6861","description":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.","status":"published","published":"2015-09-28T20:00:00Z","modified":"2024-08-06T07:36:34Z","updated_at":"2026-11-03T02:21:54.34629Z"}],"ghsa":[{"id":"GHSA-h76c-22cc-xhhx","title":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root...","description":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.","status":"published","published":"2022-05-17T02:38:26Z","modified":"2023-01-27T05:05:55Z","cwes":["CWE-59"],"updated_at":"2026-11-02T14:42:47.671932Z"}],"nvd":[{"id":"CVE-2015-6927","description":"vzctl before 4.9.4 determines the virtual environment (VE) layout based on the presence of root.hdd/DiskDescriptor.xml in the VE private directory, which allows local simfs container (CT) root users to change the root password for arbitrary ploop containers, as demonstrated by a symlink attack on the ploop container root.hdd file and then access a control panel.","status":"published","published":"2015-09-28T20:59:09.017Z","modified":"2026-06-17T00:31:36.12Z","cvss":[{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:03:09.92183Z"}],"osv":[{"id":"DSA-3357-1","title":"vzctl - security update","status":"published","published":"2015-09-13T00:00:00Z","modified":"2026-03-09T01:19:12.488905Z","updated_at":"2026-11-02T15:46:16.199525Z"}]}}