Otklonjen je sigurnosni propust otkriven u radu programskog paketa OpenStack Keystone. Udaljeni su ga napadači mogli iskoristiti za zaobilaženje postavljenih ograničenja.
Paket:
openstack-keystone 2012.x
Operacijski sustavi:
Ubuntu Linux 12.04
Problem:
pogreška u programskoj komponenti
Iskorištavanje:
udaljeno
Posljedica:
zaobilaženje postavljenih ograničenja
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-4413
Izvorni ID preporuke:
USN-1564-1
Izvor:
Ubuntu
Problem:
Propust je posljedica pogreške pri dodjeljivanju ili opozivanju ovlasti (eng. role).
Posljedica:
Napadačima omogućuje neovlašten pristup pojedinim resursima.
Rješenje:
Korisnicima se savjetuje korištenje inačice u kojoj je spomenuti propust otklonjen.
==========================================================================
Ubuntu Security Notice USN-1564-1
September 13, 2012
keystone vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
OpenStack Keystone did not properly handle user role changes
Software Description:
- keystone: OpenStack identity service
Details:
Dolph Mathews discovered that when roles are granted and revoked to
users in Keystone, pre-existing tokens were not updated or invalidated
to take the new roles into account. An attacker could use this to
continue to access resources that have been revoked.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2
python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1564-1
CVE-2012-4413
Package Information:
https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu2.2
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