gsd-2022-24726
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.
Aliases
Aliases
CVE-2022-24726


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-24726",
    "description": "Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.",
    "id": "GSD-2022-24726",
    "references": [
      "https://access.redhat.com/errata/RHSA-2022:1275",
      "https://access.redhat.com/errata/RHSA-2022:1276",
      "https://linux.oracle.com/cve/CVE-2022-24726.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-24726"
      ],
      "details": "Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.",
      "id": "GSD-2022-24726",
      "modified": "2023-12-13T01:19:42.635621Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2022-24726",
        "STATE": "PUBLIC",
        "TITLE": "Unauthenticated control plane denial of service attack in Istio"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "istio",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 1.11.8,"
                        },
                        {
                          "version_value": "\u003e= 1.12.0, \u003c 1.12.5"
                        },
                        {
                          "version_value": "\u003e= 1.13.0, \u003c 1.13.2"
                        }
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      "data_format": "MITRE",
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            "value": "Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
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                "value": "CWE-400: Uncontrolled Resource Consumption"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g",
            "refsource": "CONFIRM",
            "url": "https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g"
          },
          {
            "name": "https://github.com/golang/go/issues/51112",
            "refsource": "MISC",
            "url": "https://github.com/golang/go/issues/51112"
          },
          {
            "name": "https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd",
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          }
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      },
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        "advisory": "GHSA-8w5h-qr4r-2h6g",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.11.8||\u003e=1.12.0 \u003c1.12.5||\u003e=1.13.0 \u003c1.13.2",
          "affected_versions": "All versions before 1.11.8, all versions starting from 1.12.0 before 1.12.5, all versions starting from 1.13.0 before 1.13.2",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-400",
            "CWE-937"
          ],
          "date": "2022-03-18",
          "description": "Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.",
          "fixed_versions": [
            "1.11.8",
            "1.12.5",
            "1.13.2"
          ],
          "identifier": "CVE-2022-24726",
          "identifiers": [
            "CVE-2022-24726",
            "GHSA-8w5h-qr4r-2h6g"
          ],
          "not_impacted": "",
          "package_slug": "go/github.com/istio/istio",
          "pubdate": "2022-03-10",
          "solution": "Upgrade to versions 1.11.8, 1.12.5, 1.13.2 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-24726",
            "https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd",
            "https://github.com/golang/go/issues/51112",
            "https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g"
          ],
          "uuid": "5536ccd4-eed4-4d1a-9ad9-23a6307bf625"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.11.8",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.12.5",
                "versionStartIncluding": "1.12.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.13.2",
                "versionStartIncluding": "1.13.0",
                "vulnerable": true
              }
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            "operator": "OR"
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        "CVE_data_meta": {
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          "ID": "CVE-2022-24726"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities."
            }
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            {
              "name": "https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd",
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                "Patch",
                "Third Party Advisory"
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-03-18T20:20Z",
      "publishedDate": "2022-03-10T21:15Z"
    }
  }
}


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