4.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
7 High
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
24.8%
Before version v2.11.0, the react-native-mmkv logged the optional encryption key for the MMKV database into the Android system log. The key can be obtained by anyone with access to the Android Debugging Bridge (ADB) if it is enabled in the phone settings. This bug is not present on iOS devices.
The bridge for communicating between JS code and native code on Android logs the encryption key. This was fixed in commit a8995cc by only logging whether encryption is used.
The encryption of an MMKV database protects data from higher privilege processes on the phone that can access the app storage. Additionally, if data in the app’s storage is encrypted, it is also encrypted in potential backups.
By logging the encryption secret to the system logs, attackers can trivially recover the secret by enabling ADB and undermining an app’s thread model.
The bug was discovered and fixed by somebody else. Not me. I’m just reporting this so users of react-native-mmkv upgrade the dependency.
CPE | Name | Operator | Version |
---|---|---|---|
react-native-mmkv | lt | 2.11.0 |
github.com/advisories/GHSA-4jh3-6jhv-2mgp
github.com/mrousavy/react-native-mmkv/commit/a8995ccb7184281f7d168bad3e9987c9bd05f00d
github.com/mrousavy/react-native-mmkv/releases/tag/v2.11.0
github.com/mrousavy/react-native-mmkv/security/advisories/GHSA-4jh3-6jhv-2mgp
nvd.nist.gov/vuln/detail/CVE-2024-21668
4.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
7 High
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
24.8%