CVE-2022-34267
Published: 25 December 2023
Summary
CVE-2022-34267 is a critical-severity Improper Authentication (CWE-287) vulnerability in Rws Worldserver. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-34267 affects RWS WorldServer versions prior to 11.7.3. The flaw stems from improper authentication (CWE-287) that allows any request containing a token parameter set to the value 02 to bypass all authentication checks. An unauthenticated attacker can then POST a malicious .jar archive to the ws-api/v2/customizations/api endpoint, resulting in arbitrary Java code execution on the server.
Because the vulnerability is exploitable over the network without credentials or user interaction, an attacker can obtain full control of the affected WorldServer instance, including the ability to read, modify, or delete data and to pivot within the environment. The CVSS 3.1 base score of 9.8 reflects this maximum impact across confidentiality, integrity, and availability.
Vendor references indicate that the issue is resolved in WorldServer 11.7.3 and later releases; organizations should apply the update or follow guidance published on the RWS and Triskele Labs sites linked in the advisory.
The associated EPSS score stands at 0.7881 with no reported rise from a lower baseline.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-37228
Vulnerability details
An issue was discovered in RWS WorldServer before 11.7.3. Adding a token parameter with the value of 02 bypasses all authentication requirements. Arbitrary Java code can be uploaded and executed via a .jar archive to the ws-api/v2/customizations/api endpoint.
- 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.
Detects unauthorized successful logons resulting from improper authentication implementations.
Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.
Security awareness training instructs users on secure authentication practices and avoiding credential compromise.
Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.
Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.
Session content review can reveal authentication bypasses or failures in session establishment.
Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.