Remote Wi-Fi disconnection via overwritten PMF default
Published Mar 10, 2020 · Updated Aug 4, 2024
Denial of service in Android 10 Wi-Fi supplicant logic allows remote attackers to interrupt wireless connectivity without user interaction. The setRequirePmfInternal function in sta_network.cpp wrote the per-network ieee80211w option as disabled whenever PMF was not explicitly required, overriding the global PMF default instead of leaving it in control. A network advertising mandatory protected management frames reaches this unauthenticated path, and the resulting policy mismatch prevents the device from connecting rather than exposing or modifying data.
Summary
What happened
Denial of service in Android 10 Wi-Fi supplicant logic allows remote attackers to interrupt wireless connectivity without user interaction. The setRequirePmfInternal function in sta_network.cpp wrote the per-network ieee80211w option as disabled whenever PMF was not explicitly required, overriding the global PMF default instead of leaving it in control. A network advertising mandatory protected management frames reaches this unauthenticated path, and the resulting policy mismatch prevents the device from connecting rather than exposing or modifying data.
The record
- CVE
- CVE-2020-0083
- Published
- Mar 10, 2020
- Updated
- Aug 4, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 10, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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- Affected versionversion=Android-10
What conditions does exploitation require?
What is affected?
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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