GSD-2017-12868

Vulnerability from gsd - Updated: 2023-12-13 01:21
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.
Aliases
Aliases
CVE-2017-12868
To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-12868",
    "description": "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": "GSD-2017-12868"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-12868"
      ],
      "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": "GSD-2017-12868",
      "modified": "2023-12-13T01:21:04.161041Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2017-12868",
        "STATE": "PUBLIC"
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      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://simplesamlphp.org/security/201705-01",
            "refsource": "CONFIRM",
            "url": "https://simplesamlphp.org/security/201705-01"
          },
          {
            "name": "[debian-lts-announce] 20171212 [SECURITY] [DLA 1205-1] simplesamlphp security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html"
          },
          {
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            "url": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e"
          },
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            "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1408-1] simplesamlphp security update",
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            "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html"
          }
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=1.14.13",
          "affected_versions": "All versions up to 1.14.13",
          "credit": "Jaime P\u00e9rez Crespo, Matt Schwager",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-384",
            "CWE-937"
          ],
          "date": "2018-07-01",
          "description": "The `secureCompare` method in `lib/SimpleSAML/Utils/Crypto` when used with PHP, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation.",
          "fixed_versions": [
            "1.14.14"
          ],
          "identifier": "CVE-2017-12868",
          "identifiers": [
            "CVE-2017-12868"
          ],
          "not_impacted": "All versions after 1.14.13",
          "package_slug": "packagist/simplesamlphp/simplesamlphp",
          "pubdate": "2017-09-01",
          "solution": "Upgrade to version 1.14.14 or above.",
          "title": "Session fixation issue and authentication bypass",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2017-12868",
            "https://simplesamlphp.org/security/201705-01"
          ],
          "uuid": "ecfdaa0e-8fc4-4b47-ba4b-e4a1862d0986"
        }
      ]
    },
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        "nodes": [
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            "children": [
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                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndIncluding": "1.14.13",
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndIncluding": "5.5.38",
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
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        "description": {
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              "value": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-384"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://simplesamlphp.org/security/201705-01",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
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              "url": "https://simplesamlphp.org/security/201705-01"
            },
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              "name": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e"
            },
            {
              "name": "[debian-lts-announce] 20171212 [SECURITY] [DLA 1205-1] simplesamlphp security update",
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              "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html"
            },
            {
              "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1408-1] simplesamlphp security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2018-07-01T01:29Z",
      "publishedDate": "2017-09-01T13:29Z"
    }
  }
}


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