CVE-2023-39477
Inductive Automation Ignition ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Inductive Automation Ignition ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20499.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.54% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- inductiveautomation/ignition
- Source
- zdi-disclosures@trendmicro.com
References
- https://inductiveautomation.com/downloads/releasenotes/8.1.33Release Notes
- https://www.zerodayinitiative.com/advisories/ZDI-23-1050/Third Party Advisory
- https://inductiveautomation.com/downloads/releasenotes/8.1.33Release Notes
- https://www.zerodayinitiative.com/advisories/ZDI-23-1050/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.