CVE-2022-20084 Missing authorization in MT6731, MT6732, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6752, MT6753, MT6755, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6758, MT6761, MT6762, MT6763, MT6768, MT6771, MT6779, MT6781, MT6785, MT6789, MT6795, MT6797, MT6799, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6891, MT6893, MT6895, MT6983, MT6985, MT8321, MT8666, MT8667, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797
A missing permission check in MediaTek telephony allows local attackers to disable emergency broadcasts and escalate privileges without user interaction.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-20084?
CVE-2022-20084 is a high-severity missing authorization vulnerability in Google Android, published on 3 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In telephony, there is a possible way to disable receiving emergency broadcasts due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06498874; Issue ID: ALPS06498874.
Weakness: CWE-862
Which versions are affected by CVE-2022-20084?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2022-20084?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2022-20084 being exploited?
There is no known exploitation of CVE-2022-20084 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-223071148, ASB-A-223071148, GHSA-4mh3-rqcc-39w6, M-ALPS06498874.