USN-1444-1: BackupPC vulnerability

Ubuntu Security Notice USN-1444-1

17th May, 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 version:

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

CVE-2011-5081