CVE-2019-9939 Auth bypass in n/a
Remote attackers on the same network can bypass authentication in SHAREit for Android by requesting a non-existing page, adding their device to the trusted list.
- 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-2019-9939?
CVE-2019-9939 is a high-severity authentication bypass vulnerability in n/a, published on 22 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The SHAREit application before 4.0.36 for Android allows a remote attacker (on the same network or joining public "open" Wi-Fi hotspots created by the application when file transfer is initiated) to bypass authentication by trying to fetch a non-existing page. When the non-existing page is requested, the application responds with a 200 status code and empty page, and adds the requesting client device into the list of recognized devices.
Which versions are affected by CVE-2019-9939?
It affects 1 product.
Products include Ushareit Shareit.
How do I fix CVE-2019-9939?
No fix has been published for CVE-2019-9939 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-2019-9939 being exploited?
There is no known exploitation of CVE-2019-9939 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gh6j-74ww-wq32.