PatchSiren

PatchSiren cyber security CVE debrief

CVE-2023-2884 CBOT CVE debrief

CVE-2023-2884 is a critical weakness in CBOT Chatbot where cryptographically weak pseudo-random values can enable signature spoofing by key recreation. According to the NVD record, the issue affects CBOT Chatbot Core versions before v4.0.3.4 and Panel versions before v4.0.3.7. The published CVSS vector indicates a network-reachable, unauthenticated attack with high impact to confidentiality, integrity, and availability.

Vendor
CBOT
Product
Chatbot
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2023-05-25
Original CVE updated
2024-11-21
Advisory published
2023-05-25
Advisory updated
2024-11-21

Who should care

Organizations running CBOT Chatbot Core or Panel, especially administrators responsible for authentication, signing, or key management. Security teams should treat this as an urgent remediation item because the weakness affects core cryptographic trust behavior.

Technical summary

The supplied advisory and NVD data describe a use of cryptographically weak PRNG / insufficiently random values issue (CWE-330 and CWE-338). In this case, weak randomness can make generated signing material predictable enough for signature spoofing by key recreation. The vulnerable ranges in the source data are CBOT Chatbot Core before 4.0.3.4 and CBOT Chatbot Panel before 4.0.3.7. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) reflects that exploitation can be remote, requires no privileges or user interaction, and can have severe impact.

Defensive priority

Immediate

Recommended defensive actions

  • Upgrade CBOT Chatbot Core to version 4.0.3.4 or later.
  • Upgrade CBOT Chatbot Panel to version 4.0.3.7 or later.
  • Inventory all deployed CBOT Chatbot Core and Panel instances to confirm no affected versions remain in production or staging.
  • Review any integrations or workflows that depend on CBOT-generated signatures or keys and confirm they are operating on fixed versions.
  • After upgrading, verify cryptographic key generation and rotation procedures follow a strong source of randomness and current vendor guidance.
  • Monitor for unexpected authentication or signature-validation anomalies around any systems that interacted with affected instances before remediation.

Evidence notes

Claims in this debrief are limited to the supplied NVD-derived source data and the referenced USOM advisory. The source states a critical CBOT Chatbot weakness involving weak PRNG / insufficient random values, with impact described as signature spoofing by key recreation. Affected versions are Core before 4.0.3.4 and Panel before 4.0.3.7. CVSS details in the source indicate AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. No KEV listing was provided in the supplied corpus.

Official resources

CVE published 2023-05-25 and last modified 2024-11-21 in the supplied data. No Known Exploited Vulnerabilities (KEV) entry was provided in the source corpus.