6.7med

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-…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
6.7
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.6%
percentile 46%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

0.55% probability of exploitation in the next 30 days, higher than 46% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.16.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD2.06.9AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

  • bugs.debian.org /864466 · x_refsource_MISC, x_transferred
  • openwall.com /lists/oss-security/2017/06/08/3 · x_refsource_MISC, x_transferred
  • securitytracker.com /id/1038651 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • lists.debian.org /debian-lts-announce/2019/03/msg00025.html · mailing-list, x_refsource_MLIST, x_transferred
  • lists.debian.org /debian-lts-announce/2021/10/msg00029.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.