CVE-2019-5453 Auth bypass in com.nextcloud.client
Attackers can bypass lock protection in the Nextcloud Android app to access files by switching to the file provider during the lock prompt.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-5453?
CVE-2019-5453 is a medium-severity authentication bypass vulnerability in com.nextcloud.client, published on 30 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Bypass lock protection in the Nextcloud Android app prior to version 3.3.0 allowed access to files when being prompted for the lock protection and switching to the Nextcloud file provider.
Which versions are affected by CVE-2019-5453?
It affects 1 product.
Products include Nextcloud Nextcloud.
How do I fix CVE-2019-5453?
No fix has been published for CVE-2019-5453 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-5453 being exploited?
There is no known exploitation of CVE-2019-5453 in the wild and no public exploit code.
Other vulnerabilities in com.nextcloud.client
- CVE-2019-5454 SQL injection in com.nextcloud.client
- CVE-2021-43863 SQL Injection in FileContentProvider (GHSL-2021-1007)
- CVE-2019-5450 Cross-site scripting in com.nextcloud.client
- CVE-2019-5455 Auth bypass in com.nextcloud.client
- CVE-2021-22905 Information disclosure in Nextcloud Android App (com.nextcloud.client)
Sources
Also known as GHSA-8q57-r99x-pmhc.