CVE-2020-21522 Path traversal in n/a

Critical 9.8 Published Updated

Attackers can exploit a Zip Slip vulnerability in Halo to overwrite critical files and achieve remote code execution with operating system privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-21522?

CVE-2020-21522 is a critical path traversal vulnerability in n/a, published on 30 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in halo V1.1.3. A Zip Slip Directory Traversal Vulnerability in the backend,the attacker can overwrite some files, such as ftl files, .bashrc files in the user directory, and finally get the permissions of the operating system.

Weakness: CWE-22

Which versions are affected by CVE-2020-21522?

It affects 1 product.

Products include Halo Halo.

How do I fix CVE-2020-21522?

No fix has been published for CVE-2020-21522 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2020-21522 being exploited?

There is no known exploitation of CVE-2020-21522 in the wild and no public exploit code.

Sources

Also known as GHSA-gj86-cwgp-gj94.

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