CVE-2018-1000021 Command injection in n/a

Medium 5.0 Published Updated

A malicious Git server or MITM attack can exploit input validation errors in the Git client to execute arbitrary code on the user's machine.

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
None listed

What is CVE-2018-1000021?

CVE-2018-1000021 is a medium-severity command injection vulnerability in n/a, published on 9 Feb 2018. 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

GIT version 2.15.1 and earlier contains a Input Validation Error vulnerability in Client that can result in problems including messing up terminal configuration to RCE. This attack appear to be exploitable via The user must interact with a malicious git server, (or have their traffic modified in a MITM attack).

Weakness: CWE-20

Which versions are affected by CVE-2018-1000021?

It affects 1 product.

Products include Git-Scm Git.

How do I fix CVE-2018-1000021?

No fix has been published for CVE-2018-1000021 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2018-1000021 being exploited?

There is no known exploitation of CVE-2018-1000021 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-1000021, GHSA-vpq8-fvqp-vj6h, UBUNTU-CVE-2018-1000021.

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