What’s Vulnerable › Vulnerabilities

CVE-2024-1488: Unbound: unrestricted reconfiguration enabled to anyone that may lead to local privilege escalation

Description

A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound group to modify the unbound runtime configuration. If a process can connect over localhost to port 8953, it can alter the configuration of unbound.service. This flaw allows an unprivileged attacker to manipulate a running instance, potentially altering forwarders, allowing them to track all queries forwarded by the local resolver, and, in some cases, disrupting resolving altogether.

Affected products

How to fix

Upgrade to a fixed version: Fedoraproject Unbound 1.19.1-2.fc40. Check the vendor advisory for mitigations.

References

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