CVE-2021-30483 Directory Traversal in isomorphic-git

Medium 5.3 Published Updated

Attackers can exploit directory traversal in isomorphic-git to read or modify files outside the intended directory via a crafted repository.

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

What is CVE-2021-30483?

CVE-2021-30483 is a medium-severity path traversal vulnerability in n/a, published on 27 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.

Weakness: CWE-22

Which versions are affected by CVE-2021-30483?

2 open source packages ship an affected version, including isomorphic-git. It affects 1 product.

PackageAffectedFixed in
isomorphic-git npmAll versions1.8.2
isomorphic-git npmAll versions1.8.2

Products include Isomorphic-Git Isomorphic-Git.

How do I fix CVE-2021-30483?

Upgrade isomorphic-git to 1.8.2 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-30483 being exploited?

There is no known exploitation of CVE-2021-30483 in the wild and no public exploit code.

Sources

Also known as GHSA-fgxq-p49f-qw99.

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