A vulnerability has been identified in the Performance Co-Pilot (PCP) package, stemming from the mixed privilege levels utilized by systemd services associated with PCP. While certain services operate within the confines of limited PCP user/group privileges, others are granted full root privileges. This disparity in privilege levels poses a risk when privileged root processes interact with directories or directory trees owned by unprivileged PCP users. Specifically, this vulnerability may lead to the compromise of PCP user isolation and facilitate local PCP-to-root exploits, particularly through symlink attacks. These vulnerabilities underscore the importance of maintaining robust privilege separation mechanisms within PCP to mitigate the potential for unauthorized privilege escalation.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3976-1 advisory.

    pcp was updated from version 3.11.9 to version 6.2.0 (jsc#PED-8192, jsc#PED-8389):

    - Security issues fixed:

      * CVE-2024-45770: Fixed a symlink attack that allows escalating from the pcp to the root user     (bsc#1230552)
      * CVE-2024-45769: Fixed a heap corruption through metric pmstore operations (bsc#1230551)
      * CVE-2023-6917: Fixed local privilege escalation from pcp user to root in /usr/libexec/pcp/lib/pmproxy     (bsc#1217826)
      * CVE-2024-3019: Disabled redis proxy by default (bsc#1222121)

    - Major changes:

      * Add version 3 PCP archive support: instance domain change-deltas,         Y2038-safe timestamps, nanosecond-precision timestamps, arbitrary timezones support, 64-bit file     offsets used         throughout for larger (beyond 2GB) individual volumes.
        + Opt-in using the /etc/pcp.conf PCP_ARCHIVE_VERSION setting         + Version 2 archives remain the default (for next few years).
      * Switch to using OpenSSL only throughout PCP (dropped NSS/NSPR);
        this impacts on libpcp, PMAPI clients and PMCD use of encryption;
        these are now configured and used consistently with pmproxy HTTPS support and redis-server, which were     both already         using OpenSSL.
      * New nanosecond precision timestamp PMAPI calls for PCP library interfaces that make use of timestamps.
        These are all optional, and full backward compatibility is preserved for existing tools.
      * For the full list of changes please consult the packaged CHANGELOG file

    - Other packaging changes:

      * Reintroduce libuv support for SUSE Linux Enterprise 15 (bsc#1231345)
      * Moved pmlogger_daily into main package (bsc#1222815)
      * Switched logutil and pmieutil scripts from Type=oneshot to Type=exec (bsc#1186511)
      * Change dependency from openssl-devel >= 1.1.1 to openssl-devel >= 1.0.2p.
        Required for SUSE Linux Enterprise 12.
      * Disabled 'pmda-infiniband' subpackage for SUSE Linux Enterprise 12 to resolve build issues.
      * Introduce 'pmda-resctrl' package, disabled for architectures other than x86_64.
      * Change the architecture for various subpackages to 'noarch' as they contain no binaries.
      * Disable 'pmda-mssql', as it fails to build.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3785-1 advisory.

    pcp was updated from version 5.2.5 to version 6.2.0 (jsc#PED-8192, jsc#PED-8389):

    - Security issues fixed:

      * CVE-2024-45770: Fixed a symlink attack that allows escalating from the pcp to the root user     (bsc#1230552)
      * CVE-2024-45769: Fixed a heap corruption through metric pmstore operations (bsc#1230551)
      * CVE-2023-6917: Fixed local privilege escalation from pcp user to root in /usr/libexec/pcp/lib/pmproxy     (bsc#1217826)

    - Major changes:

      * Add version 3 PCP archive support: instance domain change-deltas,         Y2038-safe timestamps, nanosecond-precision timestamps, arbitrary timezones support, 64-bit file     offsets used         throughout for larger (beyond 2GB) individual volumes         + Opt-in using the /etc/pcp.conf PCP_ARCHIVE_VERSION setting         + Version 2 archives remain the default (for next few years)
      * Switch to using OpenSSL only throughout PCP (dropped NSS/NSPR);
        this impacts on libpcp, PMAPI clients and PMCD use of encryption;
        these are now configured and used consistently with pmproxy HTTPS support and redis-server, which were     both already         using OpenSSL.
      * New nanosecond precision timestamp PMAPI calls for PCP library interfaces that make use of timestamps         These are all optional, and full backward compatibility is preserved for existing tools.
      * For the full list of changes please consult the packaged CHANGELOG file

    - Other packaging changes:

      * Moved pmlogger_daily into the main package (bsc#1222815)
      * Change dependency from openssl-devel >= 1.1.1 to openssl-devel >= 1.0.2p.
        Required for SLE-12
      * Introduce 'pmda-resctrl' package, disabled for architectures other than x86_64
      * Change the architecture for various subpackages to 'noarch' as they contain no binaries
      * Disable 'pmda-mssql', as it fails to build

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3533-1 advisory.

    pcp was updated from version 5.3.7 to version 6.2.0 (jsc#PED-8192, jsc#PED-8389):

    - Security issues fixed:

      * CVE-2024-45770: Fixed a symlink attack that allows escalating from the pcp to the root user     (bsc#1230552)
      * CVE-2024-45769: Fixed a heap corruption through metric pmstore operations (bsc#1230551)
      * CVE-2023-6917: Fixed local privilege escalation from pcp user to root in /usr/libexec/pcp/lib/pmproxy     (bsc#1217826)
      * CVE-2024-3019: Disabled redis proxy by default (bsc#1222121)

    - Major changes:

      * Add version 3 PCP archive support: instance domain change-deltas,         Y2038-safe timestamps, nanosecond-precision timestamps, arbitrary timezones support, 64-bit file     offsets used         throughout for larger (beyond 2GB) individual volumes.
        + Opt-in using the /etc/pcp.conf PCP_ARCHIVE_VERSION setting         + Version 2 archives remain the default (for next few years).
      * Switch to using OpenSSL only throughout PCP (dropped NSS/NSPR);
        this impacts on libpcp, PMAPI clients and PMCD use of encryption;
        these are now configured and used consistently with pmproxy HTTPS support and redis-server, which were     both already         using OpenSSL.
      * New nanosecond precision timestamp PMAPI calls for PCP library interfaces that make use of timestamps.
        These are all optional, and full backward compatibility is preserved for existing tools.
      * For the full list of changes please consult the packaged CHANGELOG file

    - Other packaging changes:

      * Moved pmlogger_daily into main package (bsc#1222815)
      * Change dependency from openssl-devel >= 1.1.1 to openssl-devel >= 1.0.2p.
        Required for SLE-12.
      * Introduce 'pmda-resctrl' package, disabled for architectures other than x86_64.
      * Change the architecture for various subpackages to 'noarch' as they contain no binaries.
      * Disable 'pmda-mssql', as it fails to build.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - pcp: unsafe use of directories allows pcp to root privilege escalation (CVE-2023-6917)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-2213 advisory.

    [6.2.0-1.0.1]
    - Fixed libpcp derived metric issue for ol9 [Orabug: 36538820]

    [6.2.0-1]
    - Rebase to latest stable version of PCP (RHEL-2317)

    [6.1.1-4]
    - Fix pcp-ss(1) handling of UDP packet states (RHEL-17649)

    [6.1.1-2]
    - Fix pcp-ss(1) default handling of listen state (RHEL-17335)
    - Added pcp package dependency on diffutils for diffstat(1)

    [6.1.1-1]
    - Improve pmlogcheck performance with compressed archives (RHEL-3930)
    - Fix pcp-ss(1) utility handling of duplicate sources (RHEL-7498)
    - Fine-tune PCP python wrapper path resolution (RHEL-7509)
    - Rebase to latest stable version of PCP (RHEL-2317)

    [6.1.0-1]
    - Use absolute path in default PCP_PYTHON_PROG (BZ 2227011)
    - Update to latest PCP sources.

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:2213 advisory.

    Performance Co-Pilot (PCP) is a suite of tools, services, and libraries for acquisition, archiving, and     analysis of system-level performance measurements. Its light-weight distributed architecture makes it     particularly well-suited to centralized analysis of complex systems.

    Security Fix(es):

    * pcp: unsafe use of directories allows pcp to root privilege escalation (CVE-2023-6917)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
211391	SUSE SLES12 Security Update : pcp (SUSE-SU-2024:3976-1)	Nessus	SuSE Local Security Checks	medium
209940	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : pcp (SUSE-SU-2024:3785-1)	Nessus	SuSE Local Security Checks	medium
208212	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : pcp (SUSE-SU-2024:3533-1)	Nessus	SuSE Local Security Checks	medium
198518	RHEL 8 : pcp (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	medium
195082	Oracle Linux 9 : pcp (ELSA-2024-2213)	Nessus	Oracle Linux Local Security Checks	medium
194797	RHEL 9 : pcp (RHSA-2024:2213)	Nessus	Red Hat Local Security Checks	medium

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CVE-2023-6917

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