CVE-2022-38248
Published: 07 September 2022
Summary
CVE-2022-38248 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Nagios Nagios Xi. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 3.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Nagios XI versions prior to 5.8.7 contain multiple cross-site scripting vulnerabilities in the auditlog.php component. The issues are tracked as CWE-79 and carry a CVSS 3.1 score of 6.1, reflecting network attack vector, low complexity, no required privileges, and required user interaction that results in changed scope with limited confidentiality and integrity impact.
An unauthenticated attacker can supply crafted input that is rendered when a Nagios XI user views the audit log page. Successful exploitation allows the attacker to execute arbitrary script in the victim's browser context, potentially leading to session hijacking, data exfiltration, or other actions within the application's scope.
The official Nagios XI change log for version 5.8.7 addresses the vulnerabilities through remediation in the affected audit logging functionality. Organizations should upgrade to 5.8.7 or later to eliminate the flaws. The associated EPSS score has remained at 0.3352 without material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-40840
Vulnerability details
Nagios XI before v5.8.7 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities at auditlog.php.
- 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.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.