CVE-2017-9525
published 2017-06-09CVE-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…
PriorityP426medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.55%
41.9th percentile
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cron_project | cron | <= 3.0pl1-128. | — |
| cron_project | cron | >= 0 < 3.0pl1-129 | 3.0pl1-129 |
| cron_project | cron | >= 0 < 3.0pl1-129 | 3.0pl1-129 |
| cron_project | cron | >= 0 < 3.0pl1-129 | 3.0pl1-129 |
| cron_project | cron | >= 0 < 3.0pl1-129 | 3.0pl1-129 |
| cron_project | cron | >= 0 < 3.0pl1-128.1ubuntu1.2 | 3.0pl1-128.1ubuntu1.2 |
| cron_project | cron | >= 0 < 3.0pl1-128.1ubuntu1.1 | 3.0pl1-128.1ubuntu1.1 |
| cron_project | cron | >= 0 < 3.0pl1-128ubuntu2+esm2 | 3.0pl1-128ubuntu2+esm2 |
| cron_project | cron | >= 0 < 3.0pl1-128ubuntu2+esm1 | 3.0pl1-128ubuntu2+esm1 |
| debian | cron | < cron 3.0pl1-129 (bookworm) | cron 3.0pl1-129 (bookworm) |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | systemd-cron | < cron 3.0pl1-129 (bookworm) | cron 3.0pl1-129 (bookworm) |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.9MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C
osv6.7MEDIUM
vendor_debian6.7MEDIUM
vendor_ubuntu6.7MEDIUM
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GHSA
GHSA-p8jr-r46j-qpx9: In the cron package through 3
ghsa_unreviewed·2022-05-13
CVE-2017-9525 [MEDIUM] CWE-59 GHSA-p8jr-r46j-qpx9: In the cron package through 3
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.
OSV
cron regression
osv·2022-05-11·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron regression
cron regression
USN-5259-1 and USN-5259-2 fixed vulnerabilities in Cron. Unfortunately
that update was incomplete and could introduce a regression. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could poss
OSV
cron vulnerabilities
osv·2022-05-06·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron vulnerabilities
cron vulnerabilities
USN-5259-1 fixed several vulnerabilities in Cron. This update provides
the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was dis
OSV
cron vulnerabilities
osv·2022-02-01·CVSS 6.7
CVE-2017-9525 [MEDIUM] cron vulnerabilities
cron vulnerabilities
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was discovered that Cron contained a use-after-free vulnerability in
its force_rescan_user function. An attacker could possibly use this issue
to cause a
OSV
CVE-2017-9525: In the cron package through 3
osv·2017-06-09·CVSS 6.7
CVE-2017-9525 [MEDIUM] CVE-2017-9525: In the cron package through 3
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.
Ubuntu
Cron regression
vendor_ubuntu·2022-05-11·CVSS 6.7
CVE-2017-9525 [MEDIUM] Cron regression
Title: Cron regression
Summary: USN-5259-1 and USN-5259-2 introduced a regression in Cron.
USN-5259-1 and USN-5259-2 fixed vulnerabilities in Cron. Unfortunately
that update was incomplete and could introduce a regression. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorre
Ubuntu
Cron vulnerabilities
vendor_ubuntu·2022-05-06·CVSS 6.7
CVE-2019-9706 [MEDIUM] Cron vulnerabilities
Title: Cron vulnerabilities
Summary: Several security issues were fixed in Cron.
USN-5259-1 fixed several vulnerabilities in Cron. This update provides
the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this is
Ubuntu
Cron vulnerabilities
vendor_ubuntu·2022-02-01·CVSS 6.7
CVE-2019-9704 [MEDIUM] Cron vulnerabilities
Title: Cron vulnerabilities
Summary: Several security issues were fixed in Cron.
It was discovered that the postinst maintainer script in Cron unsafely
handled file permissions during package install or update operations.
An attacker could possibly use this issue to perform a privilege
escalation attack. (CVE-2017-9525)
Florian Weimer discovered that Cron incorrectly handled certain memory
operations during crontab file creation. An attacker could possibly use
this issue to cause a denial of service. (CVE-2019-9704)
It was discovered that Cron incorrectly handled user input during crontab
file creation. An attacker could possibly use this issue to cause a denial
of service. (CVE-2019-9705)
It was discovered that Cron contained a use-after-free vulnerability in
its force_rescan_user fu
Debian
CVE-2017-9525: cron - In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 ...
vendor_debian·2017·CVSS 6.7
CVE-2017-9525 [MEDIUM] CVE-2017-9525: cron - In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 ...
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.
Scope: local
bookworm: resolved (fixed in 3.0pl1-129)
bullseye: resolved (fixed in 3.0pl1-129)
forky: resolved (fixed in 3.0pl1-129)
sid: resolved (fixed in 3.0pl1-129)
trixie: resolved (fixed in 3.0pl1-129)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://bugs.debian.org/864466http://www.openwall.com/lists/oss-security/2017/06/08/3http://www.securitytracker.com/id/1038651https://lists.debian.org/debian-lts-announce/2019/03/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2021/10/msg00029.htmlhttp://bugs.debian.org/864466http://www.openwall.com/lists/oss-security/2017/06/08/3http://www.securitytracker.com/id/1038651https://lists.debian.org/debian-lts-announce/2019/03/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2021/10/msg00029.html
2017-06-09
Published