GHSA-J96G-47X2-46HV

Vulnerability from github – Published: 2022-05-14 03:15 – Updated: 2024-04-25 21:36
VLAI
Summary
SimpleSAMLphp Session fixation issue and authentication bypass in the authcrypt module
Details

The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "simplesamlphp/simplesamlphp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.14.12"
            },
            {
              "fixed": "1.14.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-12868"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-384"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-25T21:36:37Z",
    "nvd_published_at": "2017-09-01T13:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation.",
  "id": "GHSA-j96g-47x2-46hv",
  "modified": "2024-04-25T21:36:37Z",
  "published": "2022-05-14T03:15:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12868"
    },
    {
      "type": "WEB",
      "url": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12868.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/simplesamlphp/simplesamlphp"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://simplesamlphp.org/security/201705-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SimpleSAMLphp Session fixation issue and authentication bypass in the authcrypt module"
}


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