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Sid 1-50696

Message

BROWSER-FIREFOX Mozilla Firefox RemotePrompt sandbox escape attempt

Summary

This event is generated when an attacker attempts to exploit a sandbox escape vulnerability in Mozilla Firefox.

Impact

Attempted User Privilege Gain

Detailed information

This rule checks for attempts to exploit a sandbox escape vulnerability in Mozilla Firefox's RemotePrompt handler, which will allow the attacker to open additional web content in a privileged context. An attacker can exploit this vulnerability in combination with another Firefox vulnerability to achieve remote code execution on the victim's machine.

Affected systems

  • Mozilla Firefox before 67.0.4
  • Mozilla Firefox before ESR 60.7.2

Ease of attack

False positives

Not known

False negatives

Not known

Corrective action

Contributors

  • Cisco Talos Intelligence Group

Additional References

  • CVE-2019-11708
  • www.mozilla.org/en-US/security/advisories/mfsa2019-19/