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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-17522

When ORT (now via atstccfg) generates ip_allow.config files in Apache Traffic Control 3.0.0 to 3.1.0 and 4.0.0 to 4.1.0, those files include permissions that allow bad actors to push arbitrary content into and remove arbitrary content from CDN cache servers. Additionally, these permissions are potentially extended to IP addresses outside the desired range, resulting in them being granted to clients possibly outside the CDN arcitechture.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-17522
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 07:24 UTC · Revision 1

Source evidence

CVE-2020-17522

core-osv · Original source

Published 26 Jan 2021, 18:15 UTC

When ORT (now via atstccfg) generates ip_allow.config files in Apache Traffic Control 3.0.0 to 3.1.0 and 4.0.0 to 4.1.0, those files include permissions that allow bad actors to push arbitrary content into and remove arbitrary content from CDN cache servers. Additionally, these permissions are potentially extended to IP addresses outside the desired range, resulting in them being granted to clients possibly outside the CDN arcitechture.

osv:CVE-2020-17522
Complete source record
{
  "id": "e8d344780a1d7fc4d306cb201aa859441908ab43d5bc0c634fe4fd6f806ec04f",
  "url": "https://osv.dev/vulnerability/CVE-2020-17522",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-17522",
    "summary": "When ORT (now via atstccfg) generates ip_allow.config files in Apache Traffic Control 3.0.0 to 3.1.0 and 4.0.0 to 4.1.0, those files include permissions that allow bad actors to push arbitrary content into and remove arbitrary content from CDN cache servers. Additionally, these permissions are potentially extended to IP addresses outside the desired range, resulting in them being granted to clients possibly outside the CDN arcitechture.",
    "evidence": "osv:CVE-2020-17522",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-17522",
      "aliases": [
        "CVE-2020-17522",
        "GHSA-pw59-4qgf-jxr8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/trafficcontrol",
              "type": "GIT",
              "events": [
                {
                  "introduced": "eca5d609dc5877e9abc075c0228e6e400473f564"
                },
                {
                  "last_affected": "f36275fdca278cad1ec461ec7fc41b3d9ce421a8"
                },
                {
                  "introduced": "92a14286c60e46da08d08c5dfa3114b31e44311a"
                },
                {
                  "last_affected": "1e34ccd8a15c853902a154600efc60466d5736ca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:traffic_control:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "last_affected": "3.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:apache:traffic_control:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "last_affected": "4.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "RELEASE-3.1.0",
            "RELEASE-3.1.0-RC1",
            "RELEASE-3.0.1-RC2",
            "RELEASE-3.0.1",
            "RELEASE-3.0.1-RC1",
            "RELEASE-3.0.0-RC6",
            "RELEASE-3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-17522.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:52.910502555Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8%40%3Ccommits.trafficcontrol.apache.org%3E",
        "https://lists.apache.org/thread.html/rc8bfd7d4f71d61e9193efcd4699eccbab3c202ec1d75ed9d502f08bf%40%3Ccommits.trafficcontrol.apache.org%3E",
        "https://lists.apache.org/thread.html/r3de212a3da73bcf98fa2db7eafb75b2eb8e131ff466e6efc4284df09%40%3Cdev.trafficcontrol.apache.org%3E"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-17522",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437798,
  "published_at": "2021-01-26T18:15:40.787+00:00"
}