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Ubuntu 13.04 USN-1962-1 Critical: System Service Policy Bypass

ubuntu
Calendar Grey September 18, 2013
Scroller Ubuntu
Debian Security Notice DSN-4673-1 addresses an issue in debian-package-handler that enables unauthorized access to privileged functions.
ubuntu-system-service could be tricked into bypassing polkit authorizations.

Summary

ubuntu-system-service could be tricked into bypassing polkit

authorizations.

Software Description:

- ubuntu-system-service: Dbus service to set various system-wide configurations

Details:

It was discovered that ubuntu-system-service was using polkit in an unsafe

manner. A local attacker could possibly use this issue to bypass intended

polkit authorizations.

Topics%20covered

Topics Covered

security advisory critical issue ubuntu polkit service bypass local attacker threat

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 13.04:
  ubuntu-system-service           0.2.4.1

Ubuntu 12.10:
  ubuntu-system-service           0.2.3.1

Ubuntu 12.04 LTS:
  ubuntu-system-service           0.2.2.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1962-1

CVE-2013-1062

Severity
critical
Lowest
Low
Medium
High
Critical

September 18, 2013

Topics%20covered

Topics Covered

security advisory critical issue ubuntu polkit service bypass local attacker threat

Package Information

https://launchpad.net/ubuntu/+source/ubuntu-system-service/0.2.4.1
https://launchpad.net/ubuntu/+source/ubuntu-system-service/0.2.3.1
https://launchpad.net/ubuntu/+source/ubuntu-system-service/0.2.2.1

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