CVE-2023-40933
Published: 19 September 2023
Summary
CVE-2023-40933 is a high-severity SQL Injection (CWE-89) vulnerability in Nagios Nagios Xi. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 4.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-40933 is a SQL injection vulnerability affecting Nagios XI versions 5.11.1 and earlier. It resides in the update_banner_message() function, where the ID parameter is not properly sanitized, allowing crafted input to alter SQL queries executed against the application's database. The flaw is tracked under CWE-89 and carries a CVSS 3.1 score of 8.8.
An authenticated user who has been granted announcement banner configuration privileges can exploit the issue over the network by sending a malicious ID value to the affected function. Successful exploitation permits the attacker to execute arbitrary SQL statements, which can result in full read, write, or delete access to database contents and potentially lead to further compromise of the Nagios XI instance.
Public references point to Nagios security resources and an Outpost24 analysis for additional details and remediation guidance. The EPSS score has remained flat at 0.1808 with no observed post-disclosure climb.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-45472
Vulnerability details
A SQL injection vulnerability in Nagios XI v5.11.1 and below allows authenticated attackers with announcement banner configuration privileges to execute arbitrary SQL commands via the ID parameter sent to the update_banner_message() function.
- 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.