CVE-2023-38490 (GCVE-0-2023-38490)
Vulnerability from cvelistv5
Published
2023-07-27 14:46
Modified
2024-10-16 20:31
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
  • CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Summary
Kirby is a content management system. A vulnerability in versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6 only affects Kirby sites that use the `Xml` data handler (e.g. `Data::decode($string, 'xml')`) or the `Xml::parse()` method in site or plugin code. The Kirby core does not use any of the affected methods. XML External Entities (XXE) is a little used feature in the XML markup language that allows to include data from external files in an XML structure. If the name of the external file can be controlled by an attacker, this becomes a vulnerability that can be abused for various system impacts like the disclosure of internal or confidential data that is stored on the server (arbitrary file disclosure) or to perform network requests on behalf of the server (server-side request forgery, SSRF). Kirby's `Xml::parse()` method used PHP's `LIBXML_NOENT` constant, which enabled the processing of XML external entities during the parsing operation. The `Xml::parse()` method is used in the `Xml` data handler (e.g. `Data::decode($string, 'xml')`). Both the vulnerable method and the data handler are not used in the Kirby core. However they may be used in site or plugin code, e.g. to parse RSS feeds or other XML files. If those files are of an external origin (e.g. uploaded by a user or retrieved from an external URL), attackers may be able to include an external entity in the XML file that will then be processed in the parsing process. Kirby sites that don't use XML parsing in site or plugin code are *not* affected. The problem has been patched in Kirby 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6. In all of the mentioned releases, the maintainers have removed the `LIBXML_NOENT` constant as processing of external entities is out of scope of the parsing logic. This protects all uses of the method against the described vulnerability.
References
security-advisories@github.com https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387 Patch, Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/releases/tag/3.5.8.3 Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/releases/tag/3.6.6.3 Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/releases/tag/3.7.5.2 Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/releases/tag/3.8.4.1 Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/releases/tag/3.9.6 Third Party Advisory
security-advisories@github.com https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/releases/tag/3.5.8.3 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/releases/tag/3.6.6.3 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/releases/tag/3.7.5.2 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/releases/tag/3.8.4.1 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/releases/tag/3.9.6 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp Third Party Advisory
Impacted products
Vendor Product Version
getkirby kirby Version: < 3.5.8.3
Version: >= 3.6.0, < 3.6.6.3
Version: >= 3.7.0, < 3.7.5.2
Version: >= 3.8.0, < 3.8.41
Version: >= 3.9.0, < 3.9.6
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T17:46:55.192Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp"
          },
          {
            "name": "https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387"
          },
          {
            "name": "https://github.com/getkirby/kirby/releases/tag/3.5.8.3",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/releases/tag/3.5.8.3"
          },
          {
            "name": "https://github.com/getkirby/kirby/releases/tag/3.6.6.3",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/releases/tag/3.6.6.3"
          },
          {
            "name": "https://github.com/getkirby/kirby/releases/tag/3.7.5.2",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/releases/tag/3.7.5.2"
          },
          {
            "name": "https://github.com/getkirby/kirby/releases/tag/3.8.4.1",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/releases/tag/3.8.4.1"
          },
          {
            "name": "https://github.com/getkirby/kirby/releases/tag/3.9.6",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/getkirby/kirby/releases/tag/3.9.6"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-38490",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-16T20:11:59.715598Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-16T20:31:01.108Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kirby",
          "vendor": "getkirby",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.5.8.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.6.0, \u003c 3.6.6.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.7.0, \u003c 3.7.5.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.8.0, \u003c 3.8.41"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.9.0, \u003c 3.9.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Kirby is a content management system. A vulnerability in versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6 only affects Kirby sites that use the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`) or the `Xml::parse()` method in site or plugin code. The Kirby core does not use any of the affected methods.\n\nXML External Entities (XXE) is a little used feature in the XML markup language that allows to include data from external files in an XML structure. If the name of the external file can be controlled by an attacker, this becomes a vulnerability that can be abused for various system impacts like the disclosure of internal or confidential data that is stored on the server (arbitrary file disclosure) or to perform network requests on behalf of the server (server-side request forgery, SSRF).\n\nKirby\u0027s `Xml::parse()` method used PHP\u0027s `LIBXML_NOENT` constant, which enabled the processing of XML external entities during the parsing operation. The `Xml::parse()` method is used in the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`). Both the vulnerable method and the data handler are not used in the Kirby core. However they may be used in site or plugin code, e.g. to parse RSS feeds or other XML files. If those files are of an external origin (e.g. uploaded by a user or retrieved from an external URL), attackers may be able to include an external entity in the XML file that will then be processed in the parsing process. Kirby sites that don\u0027t use XML parsing in site or plugin code are *not* affected.\n\nThe problem has been patched in Kirby 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6. In all of the mentioned releases, the maintainers have removed the `LIBXML_NOENT` constant as processing of external entities is out of scope of the parsing logic. This protects all uses of the method against the described vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611: Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-776",
              "description": "CWE-776: Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-07-27T15:44:49.436Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp"
        },
        {
          "name": "https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387"
        },
        {
          "name": "https://github.com/getkirby/kirby/releases/tag/3.5.8.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/releases/tag/3.5.8.3"
        },
        {
          "name": "https://github.com/getkirby/kirby/releases/tag/3.6.6.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/releases/tag/3.6.6.3"
        },
        {
          "name": "https://github.com/getkirby/kirby/releases/tag/3.7.5.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/releases/tag/3.7.5.2"
        },
        {
          "name": "https://github.com/getkirby/kirby/releases/tag/3.8.4.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/releases/tag/3.8.4.1"
        },
        {
          "name": "https://github.com/getkirby/kirby/releases/tag/3.9.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/getkirby/kirby/releases/tag/3.9.6"
        }
      ],
      "source": {
        "advisory": "GHSA-q386-w6fg-gmgp",
        "discovery": "UNKNOWN"
      },
      "title": "Kirby XML External Entity (XXE) vulnerability in the XML data handler"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-38490",
    "datePublished": "2023-07-27T14:46:49.403Z",
    "dateReserved": "2023-07-18T16:28:12.075Z",
    "dateUpdated": "2024-10-16T20:31:01.108Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-38490\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-07-27T15:15:12.317\",\"lastModified\":\"2024-11-21T08:13:40.770\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Kirby is a content management system. A vulnerability in versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6 only affects Kirby sites that use the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`) or the `Xml::parse()` method in site or plugin code. The Kirby core does not use any of the affected methods.\\n\\nXML External Entities (XXE) is a little used feature in the XML markup language that allows to include data from external files in an XML structure. If the name of the external file can be controlled by an attacker, this becomes a vulnerability that can be abused for various system impacts like the disclosure of internal or confidential data that is stored on the server (arbitrary file disclosure) or to perform network requests on behalf of the server (server-side request forgery, SSRF).\\n\\nKirby\u0027s `Xml::parse()` method used PHP\u0027s `LIBXML_NOENT` constant, which enabled the processing of XML external entities during the parsing operation. The `Xml::parse()` method is used in the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`). Both the vulnerable method and the data handler are not used in the Kirby core. However they may be used in site or plugin code, e.g. to parse RSS feeds or other XML files. If those files are of an external origin (e.g. uploaded by a user or retrieved from an external URL), attackers may be able to include an external entity in the XML file that will then be processed in the parsing process. Kirby sites that don\u0027t use XML parsing in site or plugin code are *not* affected.\\n\\nThe problem has been patched in Kirby 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6. In all of the mentioned releases, the maintainers have removed the `LIBXML_NOENT` constant as processing of external entities is out of scope of the parsing logic. This protects all uses of the method against the described vulnerability.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":4.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N\",\"baseScore\":10.0,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":5.8}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-611\"},{\"lang\":\"en\",\"value\":\"CWE-776\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.5.0\",\"versionEndExcluding\":\"3.5.8.3\",\"matchCriteriaId\":\"E4FCE332-95EB-4BAC-B5CF-D7D24DA38476\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.6.0\",\"versionEndExcluding\":\"3.6.6.3\",\"matchCriteriaId\":\"7AE383B6-2730-4760-B58C-F08D60C4C91B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.7.0\",\"versionEndExcluding\":\"3.7.5.2\",\"matchCriteriaId\":\"CF9A36C4-9169-48F3-B43A-F7CB3825A020\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.8.0\",\"versionEndExcluding\":\"3.8.4.1\",\"matchCriteriaId\":\"C33BAD98-F500-4CE4-80A0-745A13DE9785\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.9.0\",\"versionEndExcluding\":\"3.9.6\",\"matchCriteriaId\":\"AC260646-C9E1-40A0-BB77-36A3E05FC76F\"}]}]}],\"references\":[{\"url\":\"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.9.6\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/releases/tag/3.9.6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\", \"name\": \"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\", \"name\": \"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.9.6\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.9.6\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T17:46:55.192Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-38490\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-16T20:11:59.715598Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-16T20:30:56.668Z\"}}], \"cna\": {\"title\": \"Kirby XML External Entity (XXE) vulnerability in the XML data handler\", \"source\": {\"advisory\": \"GHSA-q386-w6fg-gmgp\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"getkirby\", \"product\": \"kirby\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.5.8.3\"}, {\"status\": \"affected\", \"version\": \"\u003e= 3.6.0, \u003c 3.6.6.3\"}, {\"status\": \"affected\", \"version\": \"\u003e= 3.7.0, \u003c 3.7.5.2\"}, {\"status\": \"affected\", \"version\": \"\u003e= 3.8.0, \u003c 3.8.41\"}, {\"status\": \"affected\", \"version\": \"\u003e= 3.9.0, \u003c 3.9.6\"}]}], \"references\": [{\"url\": \"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\", \"name\": \"https://github.com/getkirby/kirby/security/advisories/GHSA-q386-w6fg-gmgp\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\", \"name\": \"https://github.com/getkirby/kirby/commit/277b05662d2b67386f0a0f18323cf68b30e86387\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.5.8.3\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.6.6.3\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.7.5.2\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.8.4.1\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/getkirby/kirby/releases/tag/3.9.6\", \"name\": \"https://github.com/getkirby/kirby/releases/tag/3.9.6\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Kirby is a content management system. A vulnerability in versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6 only affects Kirby sites that use the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`) or the `Xml::parse()` method in site or plugin code. The Kirby core does not use any of the affected methods.\\n\\nXML External Entities (XXE) is a little used feature in the XML markup language that allows to include data from external files in an XML structure. If the name of the external file can be controlled by an attacker, this becomes a vulnerability that can be abused for various system impacts like the disclosure of internal or confidential data that is stored on the server (arbitrary file disclosure) or to perform network requests on behalf of the server (server-side request forgery, SSRF).\\n\\nKirby\u0027s `Xml::parse()` method used PHP\u0027s `LIBXML_NOENT` constant, which enabled the processing of XML external entities during the parsing operation. The `Xml::parse()` method is used in the `Xml` data handler (e.g. `Data::decode($string, \u0027xml\u0027)`). Both the vulnerable method and the data handler are not used in the Kirby core. However they may be used in site or plugin code, e.g. to parse RSS feeds or other XML files. If those files are of an external origin (e.g. uploaded by a user or retrieved from an external URL), attackers may be able to include an external entity in the XML file that will then be processed in the parsing process. Kirby sites that don\u0027t use XML parsing in site or plugin code are *not* affected.\\n\\nThe problem has been patched in Kirby 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6. In all of the mentioned releases, the maintainers have removed the `LIBXML_NOENT` constant as processing of external entities is out of scope of the parsing logic. This protects all uses of the method against the described vulnerability.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-611\", \"description\": \"CWE-611: Improper Restriction of XML External Entity Reference\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-776\", \"description\": \"CWE-776: Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-07-27T15:44:49.436Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-38490\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-10-16T20:31:01.108Z\", \"dateReserved\": \"2023-07-18T16:28:12.075Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-07-27T14:46:49.403Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.