Local contact-number disclosure via content URI processing
Published Apr 19, 2023 · Updated Feb 5, 2025
Information disclosure in Android Telecom 11, 12, 12L, and 13 allows local users to enumerate another user's contact phone number. NewOutgoingCallIntentBroadcaster.getNumberFromCallIntent passes an untrusted content-scheme call URI to a helper that resolves it through the content resolver instead of accepting only tel or sip data. A locally executing app with user privileges can trigger the disclosure without user interaction, but the flaw grants no reported ability to modify contacts or disrupt calls.
Summary
What happened
Information disclosure in Android Telecom 11, 12, 12L, and 13 allows local users to enumerate another user's contact phone number. NewOutgoingCallIntentBroadcaster.getNumberFromCallIntent passes an untrusted content-scheme call URI to a helper that resolves it through the content resolver instead of accepting only tel or sip data. A locally executing app with user privileges can trigger the disclosure without user interaction, but the flaw grants no reported ability to modify contacts or disrupt calls.
The record
- CVE
- CVE-2023-21082
- Published
- Apr 19, 2023
- Updated
- Feb 5, 2025
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-441, T1432
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Apr 19, 2023CVE publishedPublication date reported by the CVE source.
- Feb 5, 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?
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- Affected versionversion=Android-11 Android-12 Android-12L Android-13
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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