#VU73678 Information disclosure in Mozilla Firefox and Firefox for Android - CVE-2023-25750

Vulnerability identifier: #VU73678

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-25750

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers
Firefox for Android
Mobile applications / Apps for mobile phones

Vendor: Mozilla

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists due to an unspecified error, which can cause the ServiceWorker's offline cache to be leaked to the file system when using private browsing mode. As a result, an attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 103.0 - 110.0.1

Firefox for Android: 100.1.0 - 110.1.0

---

External links
https://www.mozilla.org/en-US/security/advisories/mfsa2023-09/

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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