Otkrivena je sigurnosna ranjivost paketa backuppc koja zlonamjernom korisniku omogućuje izvođenje XSS napada te otkrivanje osjetljivih informacija.
Paket:
backuppc 4.x
Operacijski sustavi:
Ubuntu Linux 8.04, Ubuntu Linux 10.04, Ubuntu Linux 11.04, Ubuntu Linux 11.10
Problem:
XSS
Iskorištavanje:
udaljeno
Posljedica:
otkrivanje osjetljivih informacija
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-5081
Izvorni ID preporuke:
USN-1444-1
Izvor:
Ubuntu
Problem:
Ranjivost se javlja zbog nepravilne provjere ulaznih podataka pri obradi RestoreFile poruka o pogreškama.
Posljedica:
Napadač bi mogao iskoristiti propust za izvođenje XSS napada ako navede korisnika na pregled posebno oblikovanog izlaza s poslužitelja te za otkrivanje osjetljivih informacija.
Rješenje:
Svim se korisnicima savjetuje instalacija nadogradnje.
==========================================================================
Ubuntu Security Notice USN-1444-1
May 17, 2012
backuppc vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary:
BackupPC could be made to expose sensitive information over the network.
Software Description:
- backuppc: high-performance, enterprise-grade system for backing up PCs
Details:
It was discovered that BackupPC did not properly sanitize its input when
processing RestoreFile error messages, resulting in a cross-site
scripting (XSS) vulnerability. With cross-site scripting vulnerabilities,
if a user were tricked into viewing server output during a crafted server
request, a remote attacker could exploit this to modify the contents, or
steal confidential data, within the same domain.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
backuppc 3.2.1-2ubuntu1.1
Ubuntu 11.10:
backuppc 3.2.1-1ubuntu1.2
Ubuntu 11.04:
backuppc 3.2.0-3ubuntu4.3
Ubuntu 10.04 LTS:
backuppc 3.1.0-9ubuntu1.3
Ubuntu 8.04 LTS:
backuppc 3.0.0-4ubuntu1.4
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1444-1
CVE-2011-5081
Package Information:
https://launchpad.net/ubuntu/+source/backuppc/3.2.1-2ubuntu1.1
https://launchpad.net/ubuntu/+source/backuppc/3.2.1-1ubuntu1.2
https://launchpad.net/ubuntu/+source/backuppc/3.2.0-3ubuntu4.3
https://launchpad.net/ubuntu/+source/backuppc/3.1.0-9ubuntu1.3
https://launchpad.net/ubuntu/+source/backuppc/3.0.0-4ubuntu1.4
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