#VU10197 Security restrictions bypass in Mozilla Firefox - CVE-2018-5112

Vulnerability identifier: #VU10197

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-5112

CWE-ID: CWE-264

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 bypass security restrictions on the target system.

The vulnerability exists due to the failure to enforce the requirement of the Development Tools panels of an extension to load URLs for the panels as relative URLs from the extension manifest file. A remote attacker can bypass security restrictions and load a URL that it should not be able to access.

Mitigation
Update to version 58.0.

Vulnerable software versions

Mozilla Firefox: 57.0 - 57.0.4

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2018-02/

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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.