GSD-2017-12871

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).
Aliases
Aliases
CVE-2017-12871
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{
  "GSD": {
    "alias": "CVE-2017-12871",
    "description": "The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).",
    "id": "GSD-2017-12871"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-12871"
      ],
      "details": "The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).",
      "id": "GSD-2017-12871",
      "modified": "2023-12-13T01:21:04.155094Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2017-12871",
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          }
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          {
            "name": "https://simplesamlphp.org/security/201703-02",
            "refsource": "CONFIRM",
            "url": "https://simplesamlphp.org/security/201703-02"
          },
          {
            "name": "https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904",
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            "url": "https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904"
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=1.14.0,\u003c=1.14.11",
          "affected_versions": "All versions starting from 1.14.0 up to 1.14.11",
          "credit": "Chris Czub (Duo Security)",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-326",
            "CWE-937"
          ],
          "date": "2017-09-06",
          "description": "The `aesEncrypt` method in `lib/SimpleSAML/Utils/Crypto` makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first bytes of the secret key as the initialization vector (IV).",
          "fixed_versions": [
            "1.14.12"
          ],
          "identifier": "CVE-2017-12871",
          "identifiers": [
            "CVE-2017-12871"
          ],
          "not_impacted": "All versions before 1.14.0, all versions after 1.14.11",
          "package_slug": "packagist/simplesamlphp/simplesamlphp",
          "pubdate": "2017-09-01",
          "solution": "Upgrade to version 1.14.12 or above.",
          "title": "Incorrect IV generation for encryption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2017-12871",
            "https://simplesamlphp.org/security/201703-02"
          ],
          "uuid": "b1ab5b64-8740-4359-8d23-764f74f850a0"
        }
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2017-09-06T01:36Z",
      "publishedDate": "2017-09-01T21:29Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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