CVE-2020-6830 Information disclosure in Firefox for iOS
Firefox for iOS leaked a security token used for native-to-JS bridging, allowing potential bypass of bridging restrictions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-6830?
CVE-2020-6830 is a high-severity vulnerability in Mozilla Firefox Mobile, published on 26 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.
Weakness: CWE-200
Which versions are affected by CVE-2020-6830?
It affects 1 product.
Products include Mozilla Firefox Mobile.
How do I fix CVE-2020-6830?
No fix has been published for CVE-2020-6830 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-6830 being exploited?
There is no known exploitation of CVE-2020-6830 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox Mobile
Sources
Also known as GHSA-3j75-7jc2-vqcg.