Vulnerability · Published Apr 27, 2024 · Assigned by VulDB

CVE-2024-4292Contemporary Controls BASrouter BACnet BASRT-B Device-Communication-Control Service denial of service

Medium 6.5

In plain English

A medium-severity security flaw in BASrouter BACnet BASRT-B from Contemporary Controls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 61.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical has been found in Contemporary Controls BASrouter BACnet BASRT-B 2.7.2. Affected is an unknown function of the component Device-Communication-Control Service. The manipulation with the input 55ff0500370015f30104025506110afb7519035d0841e4bece257b6acfc71f leads to denial of service. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-262224. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Contemporary Controls	BASrouter BACnet BASRT-B	2.7.2

Weakness: CWE-404 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

VDB-262224 | Contemporary Controls BASrouter BACnet BASRT-B Device-Communication-Control Service denial of service vdb-entry, technical-description
VDB-262224 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #320749 | Contemporary Control Systems, Inc BASRT-B Firmware Revision: 2.7.2 Denial of Service third-party-advisory
https://github.com/isZzzz/BASRT-B_BACnet_Router_Document/blob/main/BASRT_CVE_apply.pdf related
https://github.com/isZzzz/BASRT-B_BACnet_Router_Document/blob/main/BASER-B_backdoor.pcapng exploit