CVE-2013-2029: nagios.upgrade_to_v3.sh, as distributed by Red Hat and possibly others for Nagios Core 3.4.4, 3.5.1, and ea...

Security readout for executives and security teams

This vulnerability affects a Nagios upgrade script that used a predictable temporary file in /tmp. A local user could abuse that weakness to cause the script to overwrite files. Business urgency is mainly for systems where Nagios was installed from affected Red Hat-distributed packages and local shell access exists. Exposure is likely limited to Nagios Core systems carrying the affected upgrade script, especially Red Hat-packaged installations from the affected era. The attack requires local user access and likely depends on the script being run with sufficient privileges. Treat this as a targeted cleanup item for legacy monitoring servers, not an internet-wide emergency. Prioritize systems with shared local access, privileged administrators, or older Red Hat Nagios packages. Mitigation focus: Review and apply Red Hat RHSA-2013:1526 where applicable.; Check current vendor guidance for non-Red Hat Nagios distributions.; Remove or replace vulnerable copies of nagios.upgrade_to_v3.sh..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.