#VU6345 Information disclosure in Mozilla Firefox - CVE-2017-5468

Vulnerability identifier: #VU6345

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5468

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description

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

The vulnerability exists due to an error connected with incorrect ownership model of privateBrowsing. An attacker can expose certain sensitive data through developer tools. This can result in a non-exploitable crash when manually triggered during debugging.

Mitigation
Update to Firefox 53.

Vulnerable software versions

Mozilla Firefox: 52 - 52.0.2

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2017-10/

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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.