CVE-2021-45916 SUN & MOON RISE CO., LTD. Shockwall - Improper Input Validation

Low 3.5 Published Updated

An authenticated local network attacker can disrupt the Shockwall service by sending malicious responses due to improper input validation.

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

What is CVE-2021-45916?

CVE-2021-45916 is a low-severity denial of service vulnerability in SUN & MOON RISE CO., LTD. Shockwall, published on 3 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The programming function of Shockwall system has an improper input validation vulnerability. An authenticated attacker within the local area network can send malicious response to the server to disrupt the service partially.

Weakness: CWE-20

Which versions are affected by CVE-2021-45916?

It affects 1 product.

Products include Smr Shenwang Endpoint Protection Security System.

How do I fix CVE-2021-45916?

No fix has been published for CVE-2021-45916 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-45916 being exploited?

There is no known exploitation of CVE-2021-45916 in the wild and no public exploit code.

Sources

Also known as GHSA-v723-7fm6-5c8m.

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