Configuration tampering via device password bypass
Published Jan 19, 2022 · Updated Sep 16, 2024
Authentication bypass in Bosch AMC2 configuration tools allows remote attackers on the local network to alter controller settings. AccessIPConfig.exe and AmcIpConfig.exe accept configuration changes after attackers circumvent device password protection instead of enforcing authentication for critical writes. Reachability requires access to the AMC2 subnet; exploitation can change access-control configuration or make the controller unresponsive.
Summary
What happened
Authentication bypass in Bosch AMC2 configuration tools allows remote attackers on the local network to alter controller settings. AccessIPConfig.exe and AmcIpConfig.exe accept configuration changes after attackers circumvent device password protection instead of enforcing authentication for critical writes. Reachability requires access to the AMC2 subnet; exploitation can change access-control configuration or make the controller unresponsive.
The record
- CVE
- CVE-2021-23843
- Published
- Jan 19, 2022
- Updated
- Sep 16, 2024
- Vendor
- Bosch Security Systems B.V.
- Product
- Access Management System (AMS)
- Classifications
- CWE-306, T0814, T0836
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 19, 2022CVE publishedPublication date reported by the CVE source.
- Sep 16, 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?
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- Affected versionversion=unspecified <4.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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