CVE-2020-5637 Code injection in Aterm SA3500G

Medium 6.8 Published Updated

An attacker with administrative privileges can execute malicious programs on NEC Aterm SA3500G routers due to improper integrity check validation.

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

What is CVE-2020-5637?

CVE-2020-5637 is a medium-severity code injection vulnerability in NEC Corporation Aterm SA3500G, published on 14 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper validation of integrity check value vulnerability in Aterm SA3500G firmware versions prior to Ver. 3.5.9 allows an attacker with an administrative privilege to execute a malicious program.

Weakness: CWE-354

Which versions are affected by CVE-2020-5637?

It affects 1 product.

Products include Necplatforms Aterm Sa3500g Firmware.

How do I fix CVE-2020-5637?

No fix has been published for CVE-2020-5637 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-5637 being exploited?

There is no known exploitation of CVE-2020-5637 in the wild and no public exploit code.

Sources

Also known as GHSA-446c-h2fq-7hw2.

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