Vixie Cron do_command.c privilege escalation

vixie-cron-docommand-gain-privilege (26691) The risk level is classified as HighHigh Risk

Description:

Vixie Cron could allow a local attacker to gain elevated privileges, caused by improper checking of the return code of a setuid call in do_command.c. If setuid fails, a local attacker could gain root privileges on the system.


Consequences:

Gain Privileges

Remedy:

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-06-07 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux:
Refer to RHSA-2006:0539-9 for patch, upgrade, or suggested workaround information. See References.

For SUSE Linux:
Refer to SUSE Security Announcement SUSE-SA:2006:027 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • Full-disclosure Mailing List, Thu May 25 2006 - 15:12:30 CDT: rPSA-2006-0082-2 vixie-cron.
  • Rpath Bugzilla Bug 1166: Bug 1166 - non-default vixie-cron configuration provides root privilege escalation.
  • ASA-2006-168: vixie-cron security update (RHSA-2006-0539)
  • BID-18108: Vixie Cron PAM_Limits Local Privilege Escalation Vulnerability
  • CVE-2006-2607: do_command.c in Vixie cron (vixie-cron) 4.1 does not check the return code of a setuid call, which might allow local users to gain root privileges if setuid fails in cases such as PAM failures or resource limits, as originally demonstrated by a program that exceeds the process limits as defined in /etc/security/limits.conf.
  • GLSA-200606-07: Vixie Cron: Privilege Escalation
  • RHSA-2006-0539: vixie-cron security update
  • SA20380: Vixie Cron "do_command.c" setuid Security Issue
  • SA21702: Avaya Products Vixie Cron Security Issue
  • SECTRACK ID: 1016480: Vixie Cron `do_command.c` May Let Local Users Gain Elevated Privileges
  • SUSE-SA:2006:027: cron local privilege escalation

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Gentoo Linux
  • Novell UnitedLinux 1.0
  • Paul Vixie Vixie Cron 4.1
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • SuSE Linux Enterprise Server 8
  • SUSE SuSE Linux 10.0
  • SUSE SuSE Linux 10.1
  • SUSE SuSE Linux 9.1
  • SUSE SuSE Linux 9.2
  • SUSE SuSE Linux 9.3
  • SuSE SuSE Linux Desktop 1.0
  • SuSE SuSE SLES 9
  • Turbolinux Turbolinux 10 Desktop
  • Turbolinux Turbolinux 10 F...
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 10 Server x64 Ed
  • Turbolinux Turbolinux 7 Server
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux FUJI
  • Turbolinux Turbolinux Home
  • Turbolinux Turbolinux Multimedia
  • Turbolinux Turbolinux Personal
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
  • Turbolinux Turbolinux Appliance Server 2.0

Reported:

May 25, 2006

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