CVE-2022-26833
Published: 25 May 2022
Summary
CVE-2022-26833 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Openautomationsoftware Oas Platform. Its CVSS base score is 9.4 (Critical).
Operationally, ranked in the top 0.5% 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 improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. The flaw, tracked as CWE-306, permits a specially crafted series of HTTP requests to bypass authentication checks and enable unauthenticated access to the API.
Remote attackers can exploit the issue over the network without credentials or user interaction. Successful exploitation yields high integrity and availability impact along with limited confidentiality exposure, consistent with the assigned CVSS 3.1 base score of 9.4.
The vulnerability was publicly detailed in reports from Talos Intelligence. The associated EPSS score reached a peak of 0.9253 and currently stands at 0.8736, indicating sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31383
Vulnerability details
An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A specially-crafted series of HTTP requests can lead to unauthenticated use of the REST API. An attacker can send a series of HTTP…
more
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.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.