CVE-2023-20853 aEnrich a+HRD - Deserialization of Untrusted Data

Critical 9.8 Published 27 Apr 2023 Updated 30 Jan 2025

Unauthenticated attackers can execute arbitrary commands via unsafe deserialization in a+HRD's MSMQ process, risking system compromise.

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-2023-20853?

CVE-2023-20853 is a critical unsafe deserialization vulnerability in aEnrich a+HRD, published on 27 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

aEnrich Technology a+HRD has a vulnerability of Deserialization of Untrusted Data within its MSMQ asynchronized message process. An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary system commands to perform arbitrary system operation or disrupt service.

Weakness: CWE-502

Which versions are affected by CVE-2023-20853?

It affects 1 product.

Products include Aenrich A\+hrd.

How do I fix CVE-2023-20853?

No fix has been published for CVE-2023-20853 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2023-20853 being exploited?

There is no known exploitation of CVE-2023-20853 in the wild and no public exploit code.

Sources

Also known as GHSA-7mwp-xg8f-75pg.