CVE-2020-15142 Arbitrary Code Generation

High 8.0 Published Updated

Attackers can achieve arbitrary code execution by crafting malicious OpenAPI documents that generate unsafe Python client code.

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

What is CVE-2020-15142?

CVE-2020-15142 is a high-severity code injection vulnerability in triaxtec openapi-python-client, published on 14 Aug 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In openapi-python-client before version 0.5.3, clients generated with a maliciously crafted OpenAPI Document can generate arbitrary Python code. Subsequent execution of this malicious client is arbitrary code execution.

Weakness: CWE-94

Which versions are affected by CVE-2020-15142?

3 open source packages ship an affected version, including openapi-python-client. It affects 1 product.

PackageAffectedFixed in
openapi-python-client PyPIAll versions0.5.3
openapi-python-client PyPIAll versions0.5.3
openapi-python-client PyPIAll versions0.5.3

Products include Openapi-Python-Client Project Openapi-Python-Client.

How do I fix CVE-2020-15142?

Upgrade openapi-python-client to 0.5.3 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-15142 being exploited?

There is no known exploitation of CVE-2020-15142 in the wild and no public exploit code.

Sources

Also known as GHSA-9x4c-63pf-525f, PYSEC-2020-71.

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