CVE-2022-36923
Published: 10 August 2022
Summary
CVE-2022-36923 is a high-severity Improper Handling of Exceptional Conditions (CWE-755) vulnerability in Zohocorp Manageengine Firewall Analyzer. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 3.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Zoho ManageEngine products including OpManager, OpManager Plus, OpManager MSP, Network Configuration Manager, NetFlow Analyzer, Firewall Analyzer, and OpUtils contain an authentication bypass vulnerability in builds prior to those released on 2022-07-27 and 2022-07-28 (specifically 125657, 126002, 126104, and 126118). The flaw, tracked as CVE-2022-36923 with a CVSS 3.1 score of 7.5, permits unauthenticated remote attackers to retrieve a valid user API key and subsequently invoke external APIs. It is associated with CWE-284 (improper access control) and CWE-755 (improper handling of exceptional conditions).
An attacker with network access can exploit the issue without credentials or user interaction to obtain API keys, resulting in unauthorized disclosure of sensitive information from the affected management products. The attack vector is rated as network-accessible with low complexity, allowing direct targeting of exposed instances.
The vendor advisory at https://www.manageengine.com/itom/advisory/cve-2022-36923.html directs customers to upgrade to the fixed builds released in late July 2022. No other specific mitigation steps such as configuration changes or workarounds are detailed in the provided references.
EPSS scores for this CVE rose from a low baseline to a peak of 0.4685 (current value 0.2684), indicating that exploitation interest increased after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-39581
Vulnerability details
Zoho ManageEngine OpManager, OpManager Plus, OpManager MSP, Network Configuration Manager, NetFlow Analyzer, Firewall Analyzer, and OpUtils before 2022-07-27 through 2022-07-28 (125657, 126002, 126104, and 126118) allow unauthenticated attackers to obtain a user's API key, and then access external APIs.
- 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.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.