CVE-2022-43604
Published: 16 March 2023
Summary
CVE-2022-43604 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Opener Project Opener. Its CVSS base score is 10.0 (Critical).
Operationally, ranked in the top 8.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
An out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer at development commit 58ee13c. The flaw, tracked as CWE-787, is triggered by a specially crafted EtherNet/IP request and carries a CVSS 3.1 score of 10.0, reflecting network-accessible exploitation without authentication or user interaction that can impact confidentiality, integrity, and availability.
An unauthenticated remote attacker can send a series of EtherNet/IP requests to induce the out-of-bounds write. Successful exploitation may crash the server or permit remote code execution on the affected device.
The referenced Talos Intelligence report TALOS-2022-1661 provides technical details on the issue. The associated EPSS score has remained low and stable near 0.076 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-46600
Vulnerability details
An out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer development commit 58ee13c. A specially crafted EtherNet/IP request can lead to an out-of-bounds write, potentially causing the server to crash or allow for remote code…
more
execution. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.