Ubuntu Security Notice USN-1066-1
17th February, 2011
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 9.10
Attackers could use Django to perform web-based attacks.
- python-django - High-level Python web development framework
It was discovered that Django did not properly validate HTTP requests that
contain an X-Requested-With header. An attacker could exploit this
vulnerability to perform cross-site request forgery (CSRF) attacks.
It was discovered that Django did not properly sanitize its input when
performing file uploads, resulting in cross-site scripting (XSS)
vulnerabilities. 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. (CVE-2011-0697)
The problem can be corrected by updating your system to the following package version:
- Ubuntu 10.10:
- python-django 1.2.3-1ubuntu0.2.10.10.2
- Ubuntu 10.04 LTS:
- python-django 1.1.1-2ubuntu1.3
- Ubuntu 9.10:
- python-django 1.1.1-1ubuntu1.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
ATTENTION: This update introduces a small backwards-imcompatible change
to perform full CSRF validation on all requests. Prior to this update,
AJAX requests were excepted from CSRF protections. For more details, please
In general, a standard system update will make all the necessary changes.