CVE-2018-9840 Security feature bypass in n/a
Physically proximate attackers can bypass the screen lock on the Signal iOS app by rapidly interacting with the interface, exposing private data.
- 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-2018-9840?
CVE-2018-9840 is a medium-severity vulnerability in n/a, published on 10 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers to bypass the screen locker feature via certain rapid sequences of actions that include app opening, clicking on cancel, and using the home button.
Which versions are affected by CVE-2018-9840?
It affects 1 product.
Products include Signal Signal.
How do I fix CVE-2018-9840?
No fix has been published for CVE-2018-9840 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-9840 being exploited?
There is no known exploitation of CVE-2018-9840 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9v25-mc3c-w5v3.