CVE-2021-21735 Information disclosure in ZXHN H168N

Medium 6.5 Published Updated

An attacker can access sensitive user information via the wizard page without authentication due to improper permission settings on ZTE routers.

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-2021-21735?

CVE-2021-21735 is a medium-severity vulnerability in ZXHN H168N, published on 10 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A ZTE product has an information leak vulnerability. Due to improper permission settings, an attacker with ordinary user permissions could exploit this vulnerability to obtain some sensitive user information through the wizard page without authentication. This affects ZXHN H168N all versions up to V3.5.0_EG1T4_TE.

Weakness: CWE-281

Which versions are affected by CVE-2021-21735?

It affects 1 product.

Products include Zte Zxhn H168n Firmware.

How do I fix CVE-2021-21735?

No fix has been published for CVE-2021-21735 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-21735 being exploited?

There is no known exploitation of CVE-2021-21735 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-j3rv-rh4f-4rf6.

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