Link Following

Affecting cron package, versions *

Report new vulnerabilities
Do your applications use this vulnerable package? Test your applications

Overview

In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.

References

CVSS Score

6.7
medium severity
  • Attack Vector
    Local
  • Attack Complexity
    Low
  • Privileges Required
    High
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2017-9525
CWE
CWE-59
Snyk ID
SNYK-DEBIAN9-CRON-311941
Disclosed
09 Jun, 2017
Published
09 Jun, 2017