Adjacent-network denial of service via crafted DCC packet
Published Apr 27, 2024 · Updated Aug 1, 2024
BASrouter BACnet BASRT-B 2.7.2 allows remote attackers on an adjacent network to interrupt routing via a crafted DCC packet. The Device-Communication-Control Service processes the published byte sequence, but the vendor has not disclosed the faulty operation that causes denial of service. Reachability requires BACnet adjacency; the public record establishes availability loss only and does not identify whether the device hangs, crashes, or reboots.
Summary
What happened
BASrouter BACnet BASRT-B 2.7.2 allows remote attackers on an adjacent network to interrupt routing via a crafted DCC packet. The Device-Communication-Control Service processes the published byte sequence, but the vendor has not disclosed the faulty operation that causes denial of service. Reachability requires BACnet adjacency; the public record establishes availability loss only and does not identify whether the device hangs, crashes, or reboots.
The record
- CVE
- CVE-2024-4292
- Published
- Apr 27, 2024
- Updated
- Aug 1, 2024
- Vendor
- Contemporary Controls
- Product
- BASrouter
- Classifications
- CWE-404, T0814
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 27, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.7.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- BASER-B_backdoor.pcapngproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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