CVE-2021-27328 Path traversal in n/a

Medium 6.5 Published Updated

An authenticated attacker can exploit a directory traversal flaw to decrypt firmware and read sensitive information like passwords.

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

What is CVE-2021-27328?

CVE-2021-27328 is a medium-severity path traversal vulnerability in n/a, published on 19 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key.

Weakness: CWE-22

Which versions are affected by CVE-2021-27328?

It affects 1 product.

Products include Yeastar Neogate Tg400 Firmware.

How do I fix CVE-2021-27328?

No fix has been published for CVE-2021-27328 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-2021-27328 being exploited?

There is no known exploitation of CVE-2021-27328 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-9fhx-hcwq-8qwv.

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