CVE-2019-11708 on CISA KEV

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

01What CISA says about this vulnerability

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…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2019-19/
• www.mozilla.org — https://www.mozilla.org/security/advisories/mfsa2019-20/
• bugzilla.mozilla.org — https://bugzilla.mozilla.org/show_bug.cgi?id=1559858
• security.gentoo.org — https://security.gentoo.org/glsa/201908-12
• packetstormsecurity.com — http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Mozilla	Firefox ESR	unspecified
Mozilla	Firefox	unspecified
Mozilla	Thunderbird	unspecified

06Detection

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