CVE-2024-3019: Pcp: exposure of the redis server backend allows remote command execution via pmproxy

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-28 · updated 2026-06-17
Weakness: CWE-668

Description

A flaw was found in PCP. The default pmproxy configuration exposes the Redis server backend to the local network, allowing remote command execution with the privileges of the Redis user. This issue can only be exploited when pmproxy is running. By default, pmproxy is not running and needs to be started manually. The pmproxy service is usually started from the 'Metrics settings' page of the Cockpit web interface. This flaw affects PCP versions 4.3.4 and newer.

Affected products

Red Hat Enterprise Linux 8: all versions — fixed in 0:5.3.7-20.el8_10
Red Hat Enterprise Linux 8.2 Advanced Update Support: all versions — fixed in 0:5.0.2-8.el8_2
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:5.2.5-7.el8_4
Red Hat Enterprise Linux 8.4 Telecommunications Update Service: all versions — fixed in 0:5.2.5-7.el8_4
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions: all versions — fixed in 0:5.2.5-7.el8_4
Red Hat Enterprise Linux 8.6 Extended Update Support: all versions — fixed in 0:5.3.5-9.el8_6
Red Hat Enterprise Linux 8.8 Extended Update Support: all versions — fixed in 0:5.3.7-18.el8_8
Red Hat Enterprise Linux 9: all versions — fixed in 0:6.2.0-2.el9_4
Red Hat Enterprise Linux 9.0 Extended Update Support: all versions — fixed in 0:5.3.5-9.el9_0
Red Hat Enterprise Linux 9.2 Extended Update Support: all versions — fixed in 0:6.0.1-6.el9_2

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 8 0:5.3.7-20.el8_10; Red Hat Enterprise Linux 8.2 Advanced Update Support 0:5.0.2-8.el8_2; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:5.2.5-7.el8_4; Red Hat Enterprise Linux 8.4 Telecommunications Update Service 0:5.2.5-7.el8_4; Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:5.2.5-7.el8_4; Red Hat Enterprise Linux 8.6 Extended Update Support 0:5.3.5-9.el8_6; Red Hat Enterprise Linux 8.8 Extended Update Support 0:5.3.7-18.el8_8; Red Hat Enterprise Linux 9 0:6.2.0-2.el9_4; Red Hat Enterprise Linux 9.0 Extended Update Support 0:5.3.5-9.el9_0; Red Hat Enterprise Linux 9.2 Extended Update Support 0:6.0.1-6.el9_2. Check the vendor advisory for mitigations.

References

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