Authentication bypass via replayed TDI requests
Published Oct 18, 2023 · Updated Jan 16, 2025
Authentication bypass in Bently Nevada 3500 System TDI firmware 5.05 allows attackers to gain device access via replayed traffic. The TDI accepts previously captured authenticated requests over its clear-text proprietary protocol as valid traffic. Exploitation requires captured transmissions from a man-in-the-middle position or verbose inspection traces, and it exposes device access without reported service interruption.
Summary
What happened
Authentication bypass in Bently Nevada 3500 System TDI firmware 5.05 allows attackers to gain device access via replayed traffic. The TDI accepts previously captured authenticated requests over its clear-text proprietary protocol as valid traffic. Exploitation requires captured transmissions from a man-in-the-middle position or verbose inspection traces, and it exposes device access without reported service interruption.
The record
- CVE
- CVE-2023-36857
- Published
- Oct 18, 2023
- Updated
- Jan 16, 2025
- Vendor
- Bently Nevada
- Product
- Bently Nevada 3500 System
- Classifications
- CWE-294, CAPEC-60, T1557
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 18, 2023CVE publishedPublication date reported by the CVE source.
- Jan 16, 2025Record 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=5.05
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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