Link Following Affecting vzctl package, versions <4.9.4-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-DEBIAN10-VZCTL-274052
  • published28 Sept 2015
  • disclosed28 Sept 2015

Introduced: 28 Sep 2015

CVE-2015-6927  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Debian:10 vzctl to version 4.9.4-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vzctl package and not the vzctl package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1