Allele Security Alert
ASA-2019-00431
Identifier(s)
ASA-2019-00431, CVE-2019-11711, MFSA2019-21, MFSA2019-22, MFSA2019-23
Title
Script injection within domain through inner window reuse
Vendor(s)
Mozilla Foundation
Product(s)
Mozilla Firefox
Mozilla Firefox ESR
Mozilla Thunderbird
Affected version(s)
Mozilla Firefox versions before 68
Mozilla Firefox ESR versions before 60.8
Mozilla Thunderbird versions before 60.8
Fixed version(s)
Mozilla Firefox version 68
Mozilla Firefox ESR version 60.8
Mozilla Thunderbird version 60.8
Proof of concept
Unknown
Description
When an inner window is reused, it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use document.domain to relax their origin security.
Technical details
Unknown
Credits
Boris Zbarsky
Reference(s)
Mozilla Foundation Security Advisory 2019-21
https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11711
Mozilla Foundation Security Advisory 2019-22
https://www.mozilla.org/en-US/security/advisories/mfsa2019-22/#CVE-2019-11711
Mozilla Foundation Security Advisory 2019-23
https://www.mozilla.org/en-US/security/advisories/mfsa2019-23/#CVE-2019-11711
Bug 1552541
https://bugzilla.mozilla.org/show_bug.cgi?id=1552541
CVE-2019-11711
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11711
CVE-2019-11711
https://nvd.nist.gov/vuln/detail/CVE-2019-11711
If there is any error in this alert or you wish a comprehensive analysis, let us know.
Last modified: July 23, 2019