Vulnerability identifier: #VU71223

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23597

CWE-ID: CWE-254

Exploitation vector: Network

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 a remote attacker to read arbitrary files on the system.

The vulnerability exists due to a logic error in the process allocation. A compromised web child process can disable the web security opening restrictions and spawn a new child process within the file:// context, providing the ability to read arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 103.0 - 108.0.2

Firefox for Android: 103.1.0 - 108.2.0

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External links
http://www.mozilla.org/en-US/security/advisories/mfsa2023-01/

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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