CVE-2022-28940 Missing authorization in n/a

Q: Is CVE-2022-28940 being exploited?

There is no known exploitation of CVE-2022-28940 in the wild and no public exploit code.

Q: How do I fix CVE-2022-28940?

No fix has been published for CVE-2022-28940 yet. Limit exposure of the affected software until one is available.

High 7.5 Published 4 May 2022 Updated 3 Aug 2024

Unauthenticated attackers can cause denial of service on H3C MagicR100 routers by sending large data payloads to the ajaxget interface.

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-2022-28940?

CVE-2022-28940 is a high-severity missing authorization vulnerability in n/a, published on 4 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In H3C MagicR100 <=V100R005, the / Ajax / ajaxget interface can be accessed without authorization. It sends a large amount of data through ajaxmsg to carry out DOS attack.

Which versions are affected by CVE-2022-28940?

It affects 1 product.

Products include H3c Magic R100 Firmware.

How do I fix CVE-2022-28940?

No fix has been published for CVE-2022-28940 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-28940 being exploited?

There is no known exploitation of CVE-2022-28940 in the wild and no public exploit code.

Sources

Also known as GHSA-94f9-9q8r-v9qg.