Loading vulnerability…
CVE-2023-47399 affects Nagios XI and allows the Nagios XI database user (nagiosxi) to update or delete records in the xi_auditlog table. Based on the provided advisory context, the issue is not a memory corruption or code execution flaw but an authorization and integrity weakness in database privilege design: the application database account was granted full CRUD capabilities over audit log records when audit data should be append-only or otherwise protected from modification and deletion. This undermines the trustworthiness of Nagios XI audit logging because actions recorded for administrative and security-relevant events can be altered or removed by an attacker who gains the ability to act through that database user or abuse application functionality that uses it.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
nagiosxi database user can delete or modify audit log entries in xi_auditlog, making it significantly easier to conceal unauthorized actions, impede incident response, and frustrate post-compromise investigation. The vulnerability weakens accountability and non-repudiation within Nagios XI and can support follow-on objectives such as persistence, privilege abuse, and anti-forensics by removing evidence of attacker activity.If you can’t patch tonight, do this now.
nagiosxi database user to remove unnecessary UPDATE and DELETE permissions on xi_auditlog, provided this does not break required application behavior. Monitor for unexpected modifications or deletions of audit records, enable external log forwarding or immutable centralized logging so audit events are preserved outside the local application database, and restrict access to database credentials and administrative application functions that could expose or leverage the database account. Regular integrity checks and backups of audit data can also reduce anti-forensic impact.Patch, then assume compromise.
xi_auditlog table should be reviewed and reduced.No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A weakness in Nagios XI database permissions that allows the application database user to modify or delete audit log records, undermining forensic integrity.
A low-severity weakness in Nagios XI database permissions where the application database user can modify or delete audit log records, undermining forensic visibility after compromise.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.