Configuration compromise via cleartext WebGUI credentials
Published Feb 6, 2024 · Updated Aug 2, 2024
Cleartext transmission in Westermo Lynx L206-F2G1 with WeOS 4.24 allows attackers to capture WebGUI credentials over HTTP. The HTTP authentication path sends login credentials and the session identifier without encryption instead of requiring HTTPS. An attacker able to intercept local network traffic can reuse those secrets to authenticate and change the device configuration.
Summary
What happened
Cleartext transmission in Westermo Lynx L206-F2G1 with WeOS 4.24 allows attackers to capture WebGUI credentials over HTTP. The HTTP authentication path sends login credentials and the session identifier without encryption instead of requiring HTTPS. An attacker able to intercept local network traffic can reuse those secrets to authenticate and change the device configuration.
The record
- CVE
- CVE-2023-40544
- Published
- Feb 6, 2024
- Updated
- Aug 2, 2024
- Vendor
- Westermo
- Product
- Lynx
- Classifications
- CWE-319, T1040
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 6, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=4.24
- Affected versionversion=L206-F2G1
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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