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CVE-2017-9525

Date: June 9, 2017

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.

Language: DEBIAN

Severity Score

Related Resources (9)

http://www.openwall.com/lists/oss-security/2017/06/08/3
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-9525
https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html
http://www.securitytracker.com/id/1038651
http://bugs.debian.org/864466
https://security-tracker.debian.org/tracker/CVE-2017-9525
https://nvd.nist.gov/vuln/detail/CVE-2017-9525
https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html
https://www.mend.io/vulnerability-database/CVE-2017-9525

Severity Score

Weakness Type (CWE)

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

CWE-59

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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