CVE intelligence and bounded remediation

CVE-2024-1488 — Fedoraproject Unbound security vulnerability

High CVSS 8

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.

Severity
High
CVSS
8 (3.1)
Published
2024-02-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-276

Affected products

  • fedoraproject / unbound
  • redhat / codeready_linux_builder / 9.0
  • redhat / codeready_linux_builder_eus / 9.2
  • redhat / codeready_linux_builder_eus / 9.4
  • redhat / codeready_linux_builder_eus_for_power_little_endian / 9.0_ppc64le
  • redhat / codeready_linux_builder_eus_for_power_little_endian / 9.2_ppc64le

Showing 6 representative product identities from 51 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Privilege escalation and unsafe privilege management

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Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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