Auth bypass in Canon Lbp3370

CVE-2018-11692

An issue was discovered on Canon LBP6650, LBP3370, LBP3460, and LBP7750C devices. It is possible to bypass the Administrator Mode authentication for /tlogin.cgi via vectors involving frame.cgi?page=DevStatus. NOTE: the vendor reportedly responded that this issue occurs when a customer keeps the default settings without using the countermeasures and best practices shown in the documentation

Vulnerability class: Broken Authentication

EPSS: 0.046 (90.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, exploit, Broken Link, x_refsource_EXPLOIT-DB)
  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Broken Link)

Frequently asked questions

What is CVE-2018-11692?
CVE-2018-11692 is a critical-severity vulnerability in Canon Lbp3370, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-06-04.
How severe is CVE-2018-11692?
Critical severity. CVSS v3 base score is 9.8 out of 10.