GHSA-M45G-F45X-VV22

Vulnerability from github – Published: 2021-06-23 17:20 – Updated: 2021-05-20 21:19
VLAI?
Summary
Improper input validation in CNCF Cortex
Details

The Alertmanager in CNCF Cortex before 1.8.1 has a local file disclosure vulnerability when -experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cortexproject/cortex"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-31232"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-20T21:19:40Z",
    "nvd_published_at": "2021-04-30T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The Alertmanager in CNCF Cortex before 1.8.1 has a local file disclosure vulnerability when -experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.",
  "id": "GHSA-m45g-f45x-vv22",
  "modified": "2021-05-20T21:19:40Z",
  "published": "2021-06-23T17:20:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cortexproject/cortex/pull/4129/files"
    },
    {
      "type": "WEB",
      "url": "https://community.grafana.com/c/security-announcements"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cortexproject/cortex"
    },
    {
      "type": "WEB",
      "url": "https://lists.cncf.io/g/cortex-users/message/50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper input validation in CNCF Cortex"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.