#VU7102 Information disclosure in Mozilla Firefox - CVE-2017-7759

Vulnerability identifier: #VU7102

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7759

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

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

Vendor: Mozilla

Description
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to improper applying of same-origin policy.A local attacker can use Android intent URLs given to Firefox for Android to navigate from HTTP or HTTPS URLs to local file: URLs and read arbitrary files.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation
Update to version 54.0.

Vulnerable software versions

Mozilla Firefox: 38.0 - 53.0.2

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/

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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.