CVE-2012-4520 Django Allows Arbitrary URL Generation

Medium 6.4 Published Updated

Remote attackers can generate and display arbitrary URLs via crafted Host headers, potentially leading to phishing or cache poisoning.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-4520?

CVE-2012-4520 is a medium-severity vulnerability in Djangoproject Django, published on 18 Nov 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The django.http.HttpRequest.get_host function in Django 1.3.x before 1.3.4 and 1.4.x before 1.4.2 allows remote attackers to generate and display arbitrary URLs via crafted username and password Host header values.

Weakness: CWE-20

Which versions are affected by CVE-2012-4520?

5 open source packages ship an affected version, including django and Django. It affects 1 product.

PackageAffectedFixed in
django PyPIFrom 1.31.3.4, 1.4.2
django PyPIFrom 1.31.3.4
django PyPIFrom 1.41.4.2
Django PyPIFrom 1.31.3.4
Django PyPIFrom 1.41.4.2

Products include Djangoproject Django.

How do I fix CVE-2012-4520?

Upgrade django to a fixed version for your release line: 1.3.4 or 1.4.2.

Is CVE-2012-4520 being exploited?

There is no known exploitation of CVE-2012-4520 in the wild and no public exploit code.

All Djangoproject Django vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-4520, GHSA-2655-q453-22f9, PYSEC-2012-7.

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