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Security advisory

Type: advisorySources: OSVCVE: CVE-2017-12870

SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-12870
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:46 UTC · Revision 1

Source evidence

CVE-2017-12870

core-osv · Original source

Published 1 Sept 2017, 13:29 UTC

SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.

osv:CVE-2017-12870
Complete source record
{
  "id": "651f220df9a4a90395e97689d6779905a41f207d91d11ab6fcfb7bd44fcae2c5",
  "url": "https://osv.dev/vulnerability/CVE-2017-12870",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-12870",
    "summary": "SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.",
    "evidence": "osv:CVE-2017-12870",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-12870",
      "aliases": [
        "CVE-2017-12870",
        "GHSA-44pr-mgcp-v36r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/simplesamlphp/simplesamlphp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "353a77be570b29f42812a44245947b4fb030a5da"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.14.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.14.12",
            "v1.14.2",
            "v1.14.10",
            "v1.14.11",
            "v1.14.9",
            "v1.14.8",
            "v1.14.7",
            "v1.14.6",
            "v1.14.5",
            "v1.14.4",
            "v1.14.3",
            "v1.14.1",
            "v1.14.0",
            "v1.14.0-rc1",
            "v1.12.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12870.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.232372394Z",
      "provider": "osv",
      "references": [
        "https://simplesamlphp.org/security/201704-01"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "simplesamlphp:simplesamlphp",
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "1.14.12"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-12870",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435827,
  "published_at": "2017-09-01T13:29:00.333+00:00"
}