Information disclosure in Mozilla Firefox for iOS

1) Information disclosure

EUVDB-ID: #VU64804

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-31746

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a secret UUID key intended to protect internal URLs is exposed via the Referer HTTP header. A remote attacker can obtain the secret UUID keyand bypass internal URL protection.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Firefox for iOS: 100.1 - 101.1

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-27/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to perform certain actions on the device.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.