CVE-2021-0591 Privilege escalation in Android
A confused deputy vulnerability in Android's Bluetooth permission activity allows local attackers to escalate privileges via privileged broadcast receivers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-0591?
CVE-2021-0591 is a high-severity vulnerability in Google Android, published on 17 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In sendReplyIntentToReceiver of BluetoothPermissionActivity.java, there is a possible way to invoke privileged broadcast receivers due to a confused deputy. This could lead to local escalation of privilege with User execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-179386960
Weakness: CWE-610
Which versions are affected by CVE-2021-0591?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0591?
Apply the vendor's patch.
Is CVE-2021-0591 being exploited?
There is no known exploitation of CVE-2021-0591 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-179386960, ASB-A-179386960, GHSA-mvx7-rq9v-559v.