CVE-2021-41314 Auth bypass in n/a

High 8.8 Published Updated

Unauthenticated attackers can inject newlines in the password field to overwrite files, enabling admin session crafting and full web UI access.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-41314?

CVE-2021-41314 is a high-severity authentication bypass vulnerability in n/a, published on 16 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Certain NETGEAR smart switches are affected by a \n injection in the web UI's password field, which - due to several faulty aspects of the authentication scheme - allows the attacker to create (or overwrite) a file with specific content (e.g., the "2" string). This leads to admin session crafting and therefore gaining full web UI admin privileges by an unauthenticated attacker. This affects GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TUP before 1.0.5.3, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS710TUP before 1.0.5.3, GS716TP before 1.0.4.2, GS716TPP before 1.0.4.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS750E before 1.0.1.10, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.

Weakness: CWE-74

Which versions are affected by CVE-2021-41314?

It affects 20 products.

Products include Netgear Gc108p Firmware, Netgear Gc108pp Firmware, Netgear Gs108t Firmware, Netgear Gs110tp Firmware, Netgear Gs110tpp Firmware, Netgear Gs110tup Firmware and 14 more.

How do I fix CVE-2021-41314?

No fix has been published for CVE-2021-41314 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-41314 being exploited?

There is no known exploitation of CVE-2021-41314 in the wild and no public exploit code.

Sources

Also known as GHSA-g292-cmh3-q4c9.

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