Google Android 9.0/10.0/11.0/12.0 LegacyModeSmsHandler.java sendLegacyVoicemailNotification permission
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability was found in Google Android 9.0/10.0/11.0/12.0 (Smartphone Operating System). It has been classified as critical. This affects the function
sendLegacyVoicemailNotification of the file LegacyModeSmsHandler.java. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
In sendLegacyVoicemailNotification of LegacyModeSmsHandler.java, there is a possible permissions bypass due to an unsafe PendingIntent. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-185126549
The weakness was presented 01/15/2022 as A-185126549. It is possible to read the advisory at source.android.com. This vulnerability is uniquely identified as CVE-2021-39627 since 08/23/2021. The exploitability is told to be easy. Attacking locally is a requirement. A authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/19/2022). It is expected to see the exploit prices for this product increasing in the near future.The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.
Applying a patch is able to eliminate this problem.
CVSSv3VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
ExploitingClass: Privilege escalation
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Timeline08/23/2021 CVE assigned
01/15/2022 +145 days Advisory disclosed
01/15/2022 +0 days VulDB entry created
01/19/2022 +4 days VulDB last update
CVE: CVE-2021-39627 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20150917
EntryCreated: 01/15/2022 08:09 AM
Updated: 01/19/2022 02:24 PM
Changes: (1) source_cve_nvd_summary
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