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Sid 1-48565

Message

BROWSER-FIREFOX Mozilla Firefox javascript type confusion code execution attempt

Summary

This event is generated when exploit attempt against Firefox leveraging CVE-2018-12386 is detected.

Impact

remote code execution

CVE-2018-12386:

CVSS base score 8.1

CVSS impact score 5.2

CVSS exploitability score 2.8

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Detailed information

CVE-2018-12386: A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

Affected systems

  • mozilla firefox -
  • mozilla firefox 0.1
  • mozilla firefox 0.2
  • mozilla firefox 0.3
  • mozilla firefox 0.4
  • mozilla firefox 0.5
  • mozilla firefox 0.6
  • mozilla firefox 0.6.1
  • mozilla firefox 0.7
  • mozilla firefox 0.7.1
  • mozilla firefox 0.8
  • mozilla firefox 0.9
  • mozilla firefox 0.9.1
  • mozilla firefox 0.9.2
  • mozilla firefox 0.9.3
  • mozilla firefox 0.10
  • mozilla firefox 0.10.1
  • mozilla firefox 1.0
  • mozilla firefox 1.0.1
  • mozilla firefox 1.0.2
  • mozilla firefox 1.0.3
  • mozilla firefox 1.0.4
  • mozilla firefox 1.0.5
  • mozilla firefox 1.0.6
  • mozilla firefox 1.0.7
  • mozilla firefox 1.0.8
  • mozilla firefox 1.4.1
  • mozilla firefox 1.5
  • mozilla firefox 1.5.0.1
  • mozilla firefox 1.5.0.2
  • mozilla firefox 1.5.0.3
  • mozilla firefox 1.5.0.4
  • mozilla firefox 1.5.0.5
  • mozilla firefox 1.5.0.6
  • mozilla firefox 1.5.0.7
  • mozilla firefox 1.5.0.8
  • mozilla firefox 1.5.0.9
  • mozilla firefox 1.5.0.10
  • mozilla firefox 1.5.0.11
  • mozilla firefox 1.5.0.12
  • mozilla firefox 1.5.1
  • mozilla firefox 1.5.2
  • mozilla firefox 1.5.3
  • mozilla firefox 1.5.4
  • mozilla firefox 1.5.5
  • mozilla firefox 1.5.6
  • mozilla firefox 1.5.7
  • mozilla firefox 1.5.8
  • mozilla firefox 1.8
  • mozilla firefox 2.0
  • mozilla firefox 2.0.0.1
  • mozilla firefox 2.0.0.2
  • mozilla firefox 2.0.0.3
  • mozilla firefox 2.0.0.4
  • mozilla firefox 2.0.0.5
  • mozilla firefox 2.0.0.6
  • mozilla firefox 2.0.0.7
  • mozilla firefox 2.0.0.8
  • mozilla firefox 2.0.0.9
  • mozilla firefox 2.0.0.10
  • mozilla firefox 2.0.0.11
  • mozilla firefox 2.0.0.12
  • mozilla firefox 2.0.0.13
  • mozilla firefox 2.0.0.14
  • mozilla firefox 2.0.0.15
  • mozilla firefox 2.0.0.16
  • mozilla firefox 2.0.0.17
  • mozilla firefox 2.0.0.18
  • mozilla firefox 2.0.0.19
  • mozilla firefox 2.0.0.20
  • mozilla firefox 3.0
  • mozilla firefox 3.0.1
  • mozilla firefox 3.0.2
  • mozilla firefox 3.0.3
  • mozilla firefox 3.0.4
  • mozilla firefox 3.0.5
  • mozilla firefox 3.0.6
  • mozilla firefox 3.0.7
  • mozilla firefox 3.0.8
  • mozilla firefox 3.0.9
  • mozilla firefox 3.0.10
  • mozilla firefox 3.0.11
  • mozilla firefox 3.0.12
  • mozilla firefox 3.0.13
  • mozilla firefox 3.0.14
  • mozilla firefox 3.0.15
  • mozilla firefox 3.0.16
  • mozilla firefox 3.0.17
  • mozilla firefox 3.0.18
  • mozilla firefox 3.0.19
  • mozilla firefox 3.5
  • mozilla firefox 3.5.1
  • mozilla firefox 3.5.2
  • mozilla firefox 3.5.3
  • mozilla firefox 3.5.4
  • mozilla firefox 3.5.5
  • mozilla firefox 3.5.6
  • mozilla firefox 3.5.7
  • mozilla firefox 3.5.8
  • mozilla firefox 3.5.9
  • mozilla firefox 3.5.10
  • mozilla firefox 3.5.11
  • mozilla firefox 3.5.12
  • mozilla firefox 3.5.13
  • mozilla firefox 3.5.14
  • mozilla firefox 3.5.15
  • mozilla firefox 3.5.16
  • mozilla firefox 3.5.17
  • mozilla firefox 3.5.18
  • mozilla firefox 3.5.19
  • mozilla firefox 3.6
  • mozilla firefox 3.6.2
  • mozilla firefox 3.6.3
  • mozilla firefox 3.6.4
  • mozilla firefox 3.6.6
  • mozilla firefox 3.6.7
  • mozilla firefox 3.6.8
  • mozilla firefox 3.6.9
  • mozilla firefox 3.6.10
  • mozilla firefox 3.6.11
  • mozilla firefox 3.6.12
  • mozilla firefox 3.6.13
  • mozilla firefox 3.6.14
  • mozilla firefox 3.6.15
  • mozilla firefox 3.6.16
  • mozilla firefox 3.6.17
  • mozilla firefox 3.6.18
  • mozilla firefox 3.6.19
  • mozilla firefox 3.6.20
  • mozilla firefox 3.6.21
  • mozilla firefox 3.6.22
  • mozilla firefox 3.6.23
  • mozilla firefox 3.6.24
  • mozilla firefox 3.6.25
  • mozilla firefox 3.6.26
  • mozilla firefox 3.6.27
  • mozilla firefox 3.6.28
  • mozilla firefox 4.0
  • mozilla firefox 4.0.1
  • mozilla firefox 5.0
  • mozilla firefox 5.0.1
  • mozilla firefox 6.0
  • mozilla firefox 6.0.1
  • mozilla firefox 6.0.2
  • mozilla firefox 7.0
  • mozilla firefox 7.0.1
  • mozilla firefox 8.0
  • mozilla firefox 8.0.1
  • mozilla firefox 9.0
  • mozilla firefox 9.0.1
  • mozilla firefox 10.0
  • mozilla firefox 10.0.1
  • mozilla firefox 10.0.2
  • mozilla firefox 10.0.3
  • mozilla firefox 10.0.4
  • mozilla firefox 10.0.5
  • mozilla firefox 10.0.6
  • mozilla firefox 10.0.7
  • mozilla firefox 10.0.8
  • mozilla firefox 10.0.9
  • mozilla firefox 10.0.10
  • mozilla firefox 10.0.11
  • mozilla firefox 10.0.12
  • mozilla firefox 11.0
  • mozilla firefox 12.0
  • mozilla firefox 13.0
  • mozilla firefox 13.0.1
  • mozilla firefox 14.0
  • mozilla firefox 14.0.1
  • mozilla firefox 15.0
  • mozilla firefox 15.0.1
  • mozilla firefox 16.0
  • mozilla firefox 16.0.1
  • mozilla firefox 16.0.2
  • mozilla firefox 17.0
  • mozilla firefox 17.0.1
  • mozilla firefox 17.0.2
  • mozilla firefox 17.0.3
  • mozilla firefox 17.0.4
  • mozilla firefox 17.0.5
  • mozilla firefox 17.0.6
  • mozilla firefox 17.0.7
  • mozilla firefox 17.0.8
  • mozilla firefox 17.0.9
  • mozilla firefox 17.0.10
  • mozilla firefox 17.0.11
  • mozilla firefox 18.0
  • mozilla firefox 18.0.1
  • mozilla firefox 18.0.2
  • mozilla firefox 19.0
  • mozilla firefox 19.0.1
  • mozilla firefox 19.0.2
  • mozilla firefox 20.0
  • mozilla firefox 20.0.1
  • mozilla firefox 21.0
  • mozilla firefox 22.0
  • mozilla firefox 23.0
  • mozilla firefox 23.0.1
  • mozilla firefox 24.0
  • mozilla firefox 24.1
  • mozilla firefox 24.1.0
  • mozilla firefox 24.1.1
  • mozilla firefox 24.2.0
  • mozilla firefox 24.3.0
  • mozilla firefox 24.4.0
  • mozilla firefox 24.5.0
  • mozilla firefox 24.6.0
  • mozilla firefox 24.7.0
  • mozilla firefox 24.8.0
  • mozilla firefox 24.8.1
  • mozilla firefox 25.0
  • mozilla firefox 25.0.1
  • mozilla firefox 26.0
  • mozilla firefox 27.0
  • mozilla firefox 27.0.1
  • mozilla firefox 28.0
  • mozilla firefox 29.0
  • mozilla firefox 29.0.1
  • mozilla firefox 30.0
  • mozilla firefox 31.0
  • mozilla firefox 31.1.0
  • mozilla firefox 31.1.1
  • mozilla firefox 31.2.0
  • mozilla firefox 31.3.0
  • mozilla firefox 31.4.0
  • mozilla firefox 31.5.0
  • mozilla firefox 31.5.2
  • mozilla firefox 31.5.3
  • mozilla firefox 31.6.0
  • mozilla firefox 31.7.0
  • mozilla firefox 31.8.0
  • mozilla firefox 32.0
  • mozilla firefox 32.0.1
  • mozilla firefox 32.0.2
  • mozilla firefox 32.0.3
  • mozilla firefox 33.0
  • mozilla firefox 33.0.1
  • mozilla firefox 33.0.2
  • mozilla firefox 33.0.3
  • mozilla firefox 33.1
  • mozilla firefox 33.1.1
  • mozilla firefox 34.0
  • mozilla firefox 34.0.5
  • mozilla firefox 35.0
  • mozilla firefox 35.0.1
  • mozilla firefox 36.0
  • mozilla firefox 36.0.1
  • mozilla firefox 36.0.3
  • mozilla firefox 36.0.4
  • mozilla firefox 37.0
  • mozilla firefox 37.0.1
  • mozilla firefox 37.0.2
  • mozilla firefox 38.0
  • mozilla firefox 38.0.1
  • mozilla firefox 38.0.5
  • mozilla firefox 38.1.0
  • mozilla firefox 38.1.1
  • mozilla firefox 38.2.0
  • mozilla firefox 38.2.1
  • mozilla firefox 38.3.0
  • mozilla firefox 38.4.0
  • mozilla firefox 38.5.0
  • mozilla firefox 38.5.1
  • mozilla firefox 38.5.2
  • mozilla firefox 38.6.0
  • mozilla firefox 38.6.1
  • mozilla firefox 38.7.0
  • mozilla firefox 38.7.1
  • mozilla firefox 38.8.0
  • mozilla firefox 39.0
  • mozilla firefox 39.0.3
  • mozilla firefox 40.0
  • mozilla firefox 40.0.2
  • mozilla firefox 40.0.3
  • mozilla firefox 41.0
  • mozilla firefox 41.0.1
  • mozilla firefox 41.0.2
  • mozilla firefox 42.0
  • mozilla firefox 43.0
  • mozilla firefox 43.0.1
  • mozilla firefox 43.0.2
  • mozilla firefox 43.0.3
  • mozilla firefox 43.0.4
  • mozilla firefox 44.0
  • mozilla firefox 44.0.1
  • mozilla firefox 44.0.2
  • mozilla firefox 45.0
  • mozilla firefox 45.0.1
  • mozilla firefox 45.0.2
  • mozilla firefox 45.1.1
  • mozilla firefox 45.2.0
  • mozilla firefox 45.3.0
  • mozilla firefox 45.4.0
  • mozilla firefox 45.5.0
  • mozilla firefox 45.5.1
  • mozilla firefox 45.6.0
  • mozilla firefox 45.7.0
  • mozilla firefox 45.8.0
  • mozilla firefox 45.9.0
  • mozilla firefox 46.0
  • mozilla firefox 46.0.1
  • mozilla firefox 47.0
  • mozilla firefox 47.0.1
  • mozilla firefox 47.0.2
  • mozilla firefox 48.0
  • mozilla firefox 48.0.1
  • mozilla firefox 48.0.2
  • mozilla firefox 49.0
  • mozilla firefox 49.0.1
  • mozilla firefox 49.0.2
  • mozilla firefox 50.0
  • mozilla firefox 50.0.1
  • mozilla firefox 50.0.2
  • mozilla firefox 51.0
  • mozilla firefox 51.0.1
  • mozilla firefox 52.0
  • mozilla firefox 52.0.1
  • mozilla firefox 52.0.2
  • mozilla firefox 52.1.0
  • mozilla firefox 52.1.1
  • mozilla firefox 52.1.2
  • mozilla firefox 52.2.0
  • mozilla firefox 52.2.1
  • mozilla firefox 52.3.0
  • mozilla firefox 52.4.0
  • mozilla firefox 52.4.1
  • mozilla firefox 52.5.0
  • mozilla firefox 52.5.2
  • mozilla firefox 52.5.3
  • mozilla firefox 52.6.0
  • mozilla firefox 52.7.0
  • mozilla firefox 52.7.1
  • mozilla firefox 52.7.2
  • mozilla firefox 52.7.3
  • mozilla firefox 52.7.4
  • mozilla firefox 52.8.0
  • mozilla firefox 52.8.1
  • mozilla firefox 52.9.0
  • mozilla firefox 53.0
  • mozilla firefox 53.0.2
  • mozilla firefox 53.0.3
  • mozilla firefox 54.0
  • mozilla firefox 54.0.1
  • mozilla firefox 55.0
  • mozilla firefox 55.0.1
  • mozilla firefox 55.0.2
  • mozilla firefox 55.0.3
  • mozilla firefox 56.0
  • mozilla firefox 56.0.1
  • mozilla firefox 56.0.2
  • mozilla firefox 57.0
  • mozilla firefox 57.0.1
  • mozilla firefox 57.0.2
  • mozilla firefox 57.0.3
  • mozilla firefox 57.0.4
  • mozilla firefox 58.0
  • mozilla firefox 58.0.1
  • mozilla firefox 58.0.2
  • mozilla firefox 59.0
  • mozilla firefox 59.0.1
  • mozilla firefox 59.0.2
  • mozilla firefox 59.0.3
  • mozilla firefox 60.0
  • mozilla firefox 60.0.1
  • mozilla firefox 60.0.2
  • mozilla firefox 60.1.0
  • mozilla firefox 60.2.0
  • mozilla firefox 60.2.1
  • mozilla firefox 60.2.2
  • mozilla firefox 60.3.0
  • mozilla firefox 60.4.0
  • mozilla firefox 60.5.0
  • mozilla firefox 61.0
  • mozilla firefox 61.0.1
  • mozilla firefox 61.0.2
  • mozilla firefox 62.0
  • mozilla firefox 62.0.2
  • mozilla firefox_esr 10.0
  • mozilla firefox_esr 10.0.1
  • mozilla firefox_esr 10.0.2
  • mozilla firefox_esr 10.0.3
  • mozilla firefox_esr 10.0.4
  • mozilla firefox_esr 10.0.5
  • mozilla firefox_esr 10.0.6
  • mozilla firefox_esr 10.0.7
  • mozilla firefox_esr 10.0.8
  • mozilla firefox_esr 10.0.9
  • mozilla firefox_esr 10.0.10
  • mozilla firefox_esr 10.0.11
  • mozilla firefox_esr 10.0.12
  • mozilla firefox_esr 17.0
  • mozilla firefox_esr 17.0.1
  • mozilla firefox_esr 17.0.2
  • mozilla firefox_esr 17.0.3
  • mozilla firefox_esr 17.0.4
  • mozilla firefox_esr 17.0.5
  • mozilla firefox_esr 17.0.6
  • mozilla firefox_esr 17.0.7
  • mozilla firefox_esr 17.0.8
  • mozilla firefox_esr 17.0.9
  • mozilla firefox_esr 17.0.10
  • mozilla firefox_esr 17.0.11
  • mozilla firefox_esr 24.0
  • mozilla firefox_esr 24.0.1
  • mozilla firefox_esr 24.0.2
  • mozilla firefox_esr 24.1.0
  • mozilla firefox_esr 24.1.1
  • mozilla firefox_esr 24.2
  • mozilla firefox_esr 24.3
  • mozilla firefox_esr 24.4
  • mozilla firefox_esr 24.5
  • mozilla firefox_esr 24.6
  • mozilla firefox_esr 24.7
  • mozilla firefox_esr 24.8
  • mozilla firefox_esr 31.0
  • mozilla firefox_esr 31.1
  • mozilla firefox_esr 31.1.0
  • mozilla firefox_esr 31.1.1
  • mozilla firefox_esr 31.2
  • mozilla firefox_esr 31.3
  • mozilla firefox_esr 31.3.0
  • mozilla firefox_esr 31.4
  • mozilla firefox_esr 31.5
  • mozilla firefox_esr 31.5.1
  • mozilla firefox_esr 31.5.2
  • mozilla firefox_esr 31.5.3
  • mozilla firefox_esr 31.6
  • mozilla firefox_esr 31.8
  • mozilla firefox_esr 38.0
  • mozilla firefox_esr 38.0.1
  • mozilla firefox_esr 38.0.5
  • mozilla firefox_esr 38.1.0
  • mozilla firefox_esr 38.1.1
  • mozilla firefox_esr 38.2.0
  • mozilla firefox_esr 38.2.1
  • mozilla firefox_esr 38.3.0
  • mozilla firefox_esr 38.4.0
  • mozilla firefox_esr 38.5.0
  • mozilla firefox_esr 38.5.1
  • mozilla firefox_esr 38.5.2
  • mozilla firefox_esr 38.6.0
  • mozilla firefox_esr 38.6.1
  • mozilla firefox_esr 38.7.0
  • mozilla firefox_esr 38.7.1
  • mozilla firefox_esr 38.8.0
  • mozilla firefox_esr 45.0.2
  • mozilla firefox_esr 45.1.0
  • mozilla firefox_esr 45.1.1
  • mozilla firefox_esr 45.2.0
  • mozilla firefox_esr 45.3.0
  • mozilla firefox_esr 45.4.0
  • mozilla firefox_esr 45.5.0
  • canonical ubuntu_linux 14.04
  • canonical ubuntu_linux 16.04
  • canonical ubuntu_linux 18.04
  • debian debian_linux 9.0
  • redhat enterpriselinuxdesktop 6.0
  • redhat enterpriselinuxdesktop 7.0
  • redhat enterpriselinuxserver 6.0
  • redhat enterpriselinuxserver 7.0
  • redhat enterpriselinuxserver_aus 7.6
  • redhat enterpriselinuxserver_eus 7.5
  • redhat enterpriselinuxserver_eus 7.6
  • redhat enterpriselinuxserver_tus 7.6
  • redhat enterpriselinuxworkstation 6.0
  • redhat enterpriselinuxworkstation 7.0

Ease of attack

Medium

False positives

None known

False negatives

None known

Corrective action

Check to see if Firefox has been updated prior to any event. Isolate and remediate any device found to have not been patched.

Contributors

  • Cisco's Talos Intelligence Group

Additional References

  • www.mozilla.org/en-US/security/advisories/mfsa2018-24/#CVE-2018-12386