Vulnerability CVE-2017-9525
Published: 2017-06-09

Description:
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.

Type:

CWE-59

 (Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Cron project -> CRON 

 References:
http://bugs.debian.org/864466
http://www.openwall.com/lists/oss-security/2017/06/08/3
http://www.securitytracker.com/id/1038651
https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html
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