ghsa-8hpm-7f4v-97xg
Vulnerability from github
Published
2022-05-24 17:09
Modified
2022-05-24 17:09
Details

An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2020-8843"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-02-14T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Istio 1.3 through 1.3.6. Under certain circumstances, it is possible to bypass a specifically configured Mixer policy. Istio-proxy accepts the x-istio-attributes header at ingress that can be used to affect policy decisions when Mixer policy selectively applies to a source equal to ingress. To exploit this vulnerability, someone has to encode a source.uid in this header. This feature is disabled by default in Istio 1.3 and 1.4.",
  "id": "GHSA-8hpm-7f4v-97xg",
  "modified": "2022-05-24T17:09:04Z",
  "published": "2022-05-24T17:09:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8843"
    },
    {
      "type": "WEB",
      "url": "https://github.com/istio/istio/commits/master"
    },
    {
      "type": "WEB",
      "url": "https://istio.io/news/security"
    },
    {
      "type": "WEB",
      "url": "https://istio.io/news/security/istio-security-2020-002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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