CVE-2022-30320 Weak cryptography in n/a

Medium 4.3 Published Updated

Weak CRC-16 hashing in S-Bus authentication allows attackers to bypass password protection and manipulate controller configuration.

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-2022-30320?

CVE-2022-30320 is a medium-severity vulnerability in n/a, published on 28 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Saia Burgess Controls (SBC) PCD through 2022-05-06 uses a Broken or Risky Cryptographic Algorithm. According to FSCT-2022-0063, there is a Saia Burgess Controls (SBC) PCD S-Bus weak credential hashing scheme issue. The affected components are characterized as: S-Bus (5050/UDP) authentication. The potential impact is: Authentication bypass. The Saia Burgess Controls (SBC) PCD controllers utilize the S-Bus protocol (5050/UDP) for a variety of engineering purposes. It is possible to configure a password in order to restrict access to sensitive engineering functionality. Authentication is done by using the S-Bus 'write byte' message to a specific address and supplying a hashed version of the password. The hashing algorithm used is based on CRC-16 and as such not cryptographically secure. An insecure hashing algorithm is used. An attacker capable of passively observing traffic can intercept the hashed credentials and trivially find collisions allowing for authentication without having to bruteforce a keyspace defined by the actual strength of the password. This allows the attacker access to sensitive engineering functionality such as uploading/downloading control logic and manipulating controller configuration.

Weakness: CWE-327

Which versions are affected by CVE-2022-30320?

It affects 1 product.

Products include Honeywell Saia Pg5 Controls Suite.

How do I fix CVE-2022-30320?

No fix has been published for CVE-2022-30320 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-30320 being exploited?

There is no known exploitation of CVE-2022-30320 in the wild and no public exploit code.

Sources

Also known as GHSA-99h8-7hr4-j9f9.

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