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.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

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CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  4.3 MEDIUM

Vector:  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-207-03	Third Party Advisory  US Government Resource
https://www.forescout.com/blog/	Not Applicable  Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-327	Use of a Broken or Risky Cryptographic Algorithm	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

CVE Modified by MITRE 5/14/2024 6:34:52 AM

Action	Type	Old Value	New Value

Reanalysis by NIST 2/14/2024 11:10:47 AM

Action	Type	Old Value	New Value
Changed	Reference Type	https://www.forescout.com/blog/ Third Party Advisory	https://www.forescout.com/blog/ Not Applicable, Third Party Advisory

Initial Analysis by NIST 8/10/2022 11:50:05 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:a:honeywell:saia_pg5_controls_suite:-:*:*:*:*:*:*:*
Added	CVSS V3.1		NIST AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Added	CWE		NIST CWE-327
Changed	Reference Type	https://www.cisa.gov/uscert/ics/advisories/icsa-22-207-03 No Types Assigned	https://www.cisa.gov/uscert/ics/advisories/icsa-22-207-03 Third Party Advisory, US Government Resource
Changed	Reference Type	https://www.forescout.com/blog/ No Types Assigned	https://www.forescout.com/blog/ Third Party Advisory