Pcp: exposure of the redis server backend allows remote command execution via pmproxy

8.8 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Jihwan Yoon (NAVER Cloud Security Analysis) for reporting this issue.

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Affected Vendor

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Affected Software

Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

Vulnerable Versions:

4.3.4, 0:5.3.7-20.el8_10, 0:5.0.2-8.el8_2, 0:5.2.5-7.el8_4, 0:5.3.5-9.el8_6, 0:5.3.7-18.el8_8, 0:6.2.0-2.el9_4, 0:5.3.5-9.el9_0, 0:6.0.1-6.el9_2