CVE-2017-9525
medium
CVSS v3
6.7
CVSS v2
6.9
VIR risk
6.7
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.
Predictions
Exploit likelihood
66%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-9525
Vendor advisory: cve@mitre.org — http://bugs.debian.org/864466
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.0pl1-129 |
| debian | bullseye | fixed | 3.0pl1-129 |
| debian | forky | fixed | 3.0pl1-129 |
| debian | sid | fixed | 3.0pl1-129 |
| debian | trixie | fixed | 3.0pl1-129 |
| debian | not-affected | | |
| debian | 8.0 | affected | |
| debian | 9.0 | affected | |
| ubuntu | not-affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| cron_project | cron | {"endIncluding":"3.0pl1-128."} | |
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
- https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html
- https://security-tracker.debian.org/tracker/CVE-2017-9525
CWEs
CWE-59
Verify integrity in audit chain (admin only). AS-IS.