CVE-2013-1633 Setuptools vulnerable to Man-in-the-middle attacks

Medium 6.8 Published 6 Aug 2013 Updated 16 Sep 2024

Man-in-the-middle attackers can execute arbitrary code by intercepting unverified HTTP package downloads during default setuptools usage.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2013-1633?

CVE-2013-1633 is a medium-severity vulnerability in n/a, published on 6 Aug 2013. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform integrity checks on package contents, which allows man-in-the-middle attackers to execute arbitrary code via a crafted response to the default use of the product.

Weakness: CWE-20

Which versions are affected by CVE-2013-1633?

3 open source packages ship an affected version, including setuptools. It affects 1 product.

Package	Affected	Fixed in
`setuptools` PyPI	All versions	`0.7`
`setuptools` PyPI	All versions	`0.7`
`setuptools` PyPI	All versions	`0.7`

Products include Python Setuptools.

How do I fix CVE-2013-1633?

Upgrade setuptools to 0.7 or later.

Is CVE-2013-1633 being exploited?

There is no known exploitation of CVE-2013-1633 in the wild and no public exploit code.

Sources

Also known as AZL-41159, GHSA-27x4-j476-jp5f, MGASA-2013-0274, PYSEC-2013-22.