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CVE-2024-0244 Canon MF753Cdw Fax RCE: Detection & IOCs

Canon first disclosed CVE-2024-0244 in 2024 as an unauthenticated fax overflow. Its 9 detection rules, 8 IOCs and a free Splunk SPL rule are here.

Read the full threat intel for CVE-2024-0244 Canon MF753Cdw Fax RCE: Detection & IOCs →

Chapters

  1. 0:00The hookCanon printer flaw: 9.8.
  2. 0:04The storyFax jobs overflow.
  3. 0:10Attack pathA fax request triggers an overflow.
  4. 0:21AttributionNo threat actor is attributed.
  5. 0:26Indicators of compromise1 indicator to hunt: 1 path.
  6. 0:31MITRE ATT&CK techniques2 ATT&CK techniques, from initial access to command and control.
  7. 0:35Remediation2 steps now: Identify Canon MF750C-series / MF1333C / LBP1333C devices and confirm.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Canon printer flaw: 9.8.

0:05Fax jobs overflow.

0:06Canon issued a notice.

0:10A fax request triggers an overflow.

0:13Memory is then freed.

0:15On the same network, code execution is possible.

0:22No threat actor is attributed. Confidence: low.

0:261 indicator to hunt: 1 path.

0:312 ATT&CK techniques, from initial access to command and control.

0:362 steps now: Identify Canon MF750C-series / MF1333C / LBP1333C devices and confirm.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.