Security advisory

{
  "id": "4fb3241471e80c1e2bac2ddb11f85d36282e87d0c313b24fae904486bd2a32c2",
  "url": "https://osv.dev/vulnerability/CVE-2020-13920",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13920",
    "summary": "Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.",
    "evidence": "osv:CVE-2020-13920",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-13920",
      "aliases": [
        "BIT-activemq-2020-13920",
        "CVE-2020-13920",
        "GHSA-xgrx-xpv2-6vp4"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/activemq",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "cebbd7fdea0633e6a0cbbef427f9b753949fa531"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.15.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "activemq-5.15.11",
            "activemq-5.15.10",
            "activemq-5.15.9",
            "activemq-5.15.8",
            "activemq-5.15.7",
            "activemq-5.15.6",
            "activemq-5.15.5",
            "activemq-5.15.4",
            "activemq-5.15.3",
            "activemq-5.15.2",
            "activemq-5.15.1",
            "activemq-5.15.0",
            "activemq-5.14.0",
            "activemq-5.13.0",
            "activemq-5.12.0",
            "activemq-5.11.0",
            "activemq-5.10.0",
            "activemq-5.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13920.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:31.576917676Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E",
        "https://lists.debian.org/debian-lts-announce/2023/11/msg00013.html",
        "https://lists.debian.org/debian-lts-announce/2020/10/msg00013.html",
        "https://www.oracle.com/security-alerts/cpuoct2020.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:communications_diameter_signaling_router",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0.0"
                  },
                  {
                    "last_affected": "8.2.2"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:flexcube_private_banking:12.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:flexcube_private_banking",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "12.0.0"
                  },
                  {
                    "last_affected": "12.0.0"
                  },
                  {
                    "introduced": "12.1.0"
                  },
                  {
                    "last_affected": "12.1.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-13920",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432838,
  "published_at": "2020-09-10T19:15:13.16+00:00"
}