Information disclosure in Mozilla Firefox - CVE-2017-7787

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Main Vulnerability Database Vulnerabilities #VU7837

Information disclosure in Mozilla Firefox - CVE-2017-7787

Published: August 14, 2017


Vulnerability identifier: #VU7837
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-7787
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper access controls. A remote attacker can trick the victim into visiting a specially crafted website, bypass same-origin policy protections on pages with embedded iframes during page reloads and access content on the top level page.

Successful exploitation of the vulnerability results in information disclosure.

Affected software

Mozilla Firefox
Gentoo Linux
Debian Linux
Arch Linux
Red Hat Enterprise Linux for x86_64
SUSE Linux
Ubuntu
Opensuse
Mozilla Thunderbird

How to mitigate CVE-2017-7787

Update to version 55.0.


External References

Related Security Bulletins