Description
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Mozilla / Firefoxunspecified – 67.0.4
- Mozilla / Firefox ESRunspecified – 60.7.2
- Mozilla / Thunderbirdunspecified – 60.7.2
References
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2019-19/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2019-20/
- MISChttps://bugzilla.mozilla.org/show_bug.cgi?id=1559858
- MISChttps://security.gentoo.org/glsa/201908-12
- EXPLOIThttp://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html