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Exposure of Resource to Wrong Sphere

CVE-2020-1733

Severity Medium
Score 5/10

Summary

A race condition flaw was found in Ansible Engine before 2.7.17, 2.8.x up to 2.8.10 and 2.9.x up to 2.9.6 when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.

  • HIGH
  • LOCAL
  • LOW
  • CHANGED
  • REQUIRED
  • LOW
  • LOW
  • LOW

CWE-668 - Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Advisory Timeline

  • Published