Frame decryption via security-context reassociation
Published Apr 9, 2024 · Updated Aug 27, 2024
Authentication bypass in Siemens SCALANCE W700 devices allows physically proximate attackers to decrypt a victim's Wi-Fi frames. During Wi-Fi association, an affected device binds a newly negotiated, attacker-controlled security context to frames belonging to a victim, causing those frames to be processed under the attacker's keys. Exploitation requires adjacent wireless access, low privileges, and victim interaction; the bounded result is disclosure of frames intended for the victim.
Summary
What happened
Authentication bypass in Siemens SCALANCE W700 devices allows physically proximate attackers to decrypt a victim's Wi-Fi frames. During Wi-Fi association, an affected device binds a newly negotiated, attacker-controlled security context to frames belonging to a victim, causing those frames to be processed under the attacker's keys. Exploitation requires adjacent wireless access, low privileges, and victim interaction; the bounded result is disclosure of frames intended for the victim.
The record
- CVE
- CVE-2024-30191
- Published
- Apr 9, 2024
- Updated
- Aug 27, 2024
- Vendor
- Siemens
- Product
- SCALANCE W786-2 RJ45
- Classifications
- CWE-290, T0860
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 9, 2024CVE publishedPublication date reported by the CVE source.
- Aug 27, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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- Affected versionversion=0 <*
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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Your stack
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