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PatchSiren cyber security CVE debrief

CVE-2023-2883 CBOT CVE debrief

CVE-2023-2883 is a high-severity authorization bypass issue in CBOT Chatbot. The vulnerability is described as an authorization bypass through a user-controlled key and is associated with authentication abuse and authentication bypass. According to the CVE data, affected versions are CBOT Chatbot Core before v4.0.3.4 and Panel before v4.0.3.7. The official severity rating is CVSS 8.8 (HIGH), with network-based access, low attack complexity, low privileges required, no user interaction, and high impact to confidentiality, integrity, and availability.

Vendor
CBOT
Product
Chatbot
CVSS
HIGH 8.8
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

Administrators, security teams, and operators running CBOT Chatbot Core or Panel versions earlier than the fixed releases should treat this as a priority patching item. Organizations that rely on the product for customer-facing or internal authentication workflows should be especially careful because the issue concerns authorization and authentication abuse.

Technical summary

The available record maps CVE-2023-2883 to CWE-639 and describes an authorization bypass through a user-controlled key. NVD lists vulnerable CPEs for cbot_core before 4.0.3.4 and cbot_panel before 4.0.3.7. The CVSS vector indicates the issue is exploitable over the network with low complexity and low privileges, and that successful exploitation can affect confidentiality, integrity, and availability at high levels.

Defensive priority

High. This is an authentication and authorization flaw with high impact ratings and no user interaction required, so affected deployments should be prioritized for patching and validation.

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.
  • Review authentication and authorization logs for abnormal access patterns around the affected services.
  • Audit any features that rely on user-controlled keys or session-linked access checks.
  • Confirm that no unauthorized accounts, tokens, or permissions were created or modified before remediation.
  • Validate exposed instances from the network perspective and restrict access where feasible until fully remediated.

Evidence notes

The CVE description states: "Authorization Bypass Through User-Controlled Key vulnerability in CBOT Chatbot allows Authentication Abuse, Authentication Bypass." NVD metadata lists vulnerable versions for cbot_core before 4.0.3.4 and cbot_panel before 4.0.3.7, and the recorded weakness is CWE-639. The referenced USOM advisory is the only third-party advisory link supplied in the corpus. No KEV entry was supplied for this CVE.

Official resources

CVE published 2023-05-25 and last modified 2024-11-21. No Known Exploited Vulnerabilities entry was supplied in the corpus, and no ransomware-campaign association was provided.