ghsa-44cw-p2hm-gpf6
Vulnerability from github
Published
2020-12-08 22:37
Modified
2021-10-20 18:02
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Summary
Disabled Hostname Verification in Opencast
Details

Opencast before version 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests.

Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks.

Patches

This problem is fixed in Opencast 7.9 and Opencast 8.9

Self-Signed Certificates

Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate e.g. from Let's Encrypt.

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opencastproject:opencast-kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opencastproject:opencast-kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0"
            },
            {
              "fixed": "8.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-297"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-12-08T22:37:44Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Opencast before version 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast\u0027s HTTP requests.\n\nHostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks.\n\n### Patches\n\nThis problem is fixed in Opencast 7.9 and Opencast 8.9\n\n### Self-Signed Certificates\n\nPlease be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate e.g. from [Let\u0027s Encrypt](https://letsencrypt.org).",
  "id": "GHSA-44cw-p2hm-gpf6",
  "modified": "2021-10-20T18:02:17Z",
  "published": "2020-12-08T22:37:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26234"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Disabled Hostname Verification in Opencast"
}


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