RHSA-2022_6313

Vulnerability from csaf_redhat - Published: 2022-09-01 15:18 - Updated: 2024-11-15 14:55
Summary
Red Hat Security Advisory: pcs security update
Severity
Important
Notes
Topic: An update for pcs is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities. Security Fix(es): * pcs: obtaining an authentication token for hacluster user could lead to privilege escalation (CVE-2022-2735) 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.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2022-2735

A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the "hacluster" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.

8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-276 - Incorrect Default Permissions
Affected products
Product Identifier Version Remediation
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.aarch64 —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.ppc64le —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.s390x —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.src —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.x86_64 —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.aarch64 —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.ppc64le —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.s390x —
Vendor Fix fix
Unresolved product id: HighAvailability-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.x86_64 —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.aarch64 —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.ppc64le —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.s390x —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.src —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-0:0.11.1-10.el9_0.2.x86_64 —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.aarch64 —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.ppc64le —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.s390x —
Vendor Fix fix
Unresolved product id: ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.x86_64 —
Vendor Fix fix
Threats
Impact Important
References
Acknowledgments
Senior Software Engineer, Red Hat Ondrej Mular
To clipboard 

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        "product_reference": "pcs-snmp-0:0.11.1-10.el9_0.2.ppc64le",
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      },
      {
        "category": "default_component_of",
        "full_product_name": {
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        "relates_to_product_reference": "ResilientStorage-9.0.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "pcs-snmp-0:0.11.1-10.el9_0.2.x86_64 as a component of Red Hat Enterprise Linux Resilient Storage (v. 9)",
          "product_id": "ResilientStorage-9.0.0.Z.MAIN.EUS:pcs-snmp-0:0.11.1-10.el9_0.2.x86_64"
        },
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  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Ondrej Mular"
          ],
          "organization": "Senior Software Engineer, Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2022-2735",
      "cwe": {
        "id": "CWE-276",
        "name": "Incorrect Default Permissions"
      },
      "discovery_date": "2022-08-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2116815"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in the PCS project. This issue occurs due to incorrect permissions on a Unix socket used for internal communication between PCS daemons. A privilege escalation could happen by obtaining an authentication token for a hacluster user. With the \"hacluster\" token, this flaw allows an attacker to have complete control over the cluster managed by PCS.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "pcs: obtaining an authentication token for hacluster user could lead to privilege escalation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The bug was introduced in PCS version 0.10.5 upstream by this bugzilla.\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1783106",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2022-2735"
        },
        {
          "category": "external",
          "summary": "RHBZ#2116815",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2116815"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2022-2735",
          "url": "https://www.cve.org/CVERecord?id=CVE-2022-2735"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-2735",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2735"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2022/09/01/4",
          "url": "https://www.openwall.com/lists/oss-security/2022/09/01/4"
        }
      ],
      "release_date": "2022-09-01T14:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-09-01T15:18:13+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "cvss_v3": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "pcs: obtaining an authentication token for hacluster user could lead to privilege escalation"
    }
  ]
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.