CVE-2017-9525

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.

CVSS v3.0 6.7 MEDIUM
CVSS v2.0 6.9 MEDIUM

6.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2017/06/08/3	Mailing List Third Party Advisory
http://bugs.debian.org/864466	Issue Tracking Third Party Advisory Vendor Advisory
http://www.securitytracker.com/id/1038651	Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:cron_project:cron:*:*:*:*:*:*:*:*

OR	cpe:2.3:o:debian:debian_linux::::::::
	cpe:2.3:o:canonical:ubuntu_linux::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2017-06-09 09:29

Updated : 2021-12-16 10:44

NVD link : CVE-2017-9525

Mitre link : CVE-2017-9525

JSON object : View

CWE

CWE-59

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

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

cron_project

cron

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