GSD-2022-0217

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).
Aliases
Aliases
CVE-2022-0217
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{
  "GSD": {
    "alias": "CVE-2022-0217",
    "description": "It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).",
    "id": "GSD-2022-0217",
    "references": [
      "https://www.suse.com/security/cve/CVE-2022-0217.html",
      "https://www.debian.org/security/2022/dsa-5047"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-0217"
      ],
      "details": "It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).",
      "id": "GSD-2022-0217",
      "modified": "2023-12-13T01:19:11.191787Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2022-0217",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "prosody",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Fixed in prosody 0.11.12, Affects all versions with support for WebSockets."
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-776 - Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027), CWE-20 - Improper Input Validation."
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2040639",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2040639"
          },
          {
            "name": "https://prosody.im/security/advisory_20220113/",
            "refsource": "MISC",
            "url": "https://prosody.im/security/advisory_20220113/"
          },
          {
            "name": "https://prosody.im/security/advisory_20220113/1.patch",
            "refsource": "MISC",
            "url": "https://prosody.im/security/advisory_20220113/1.patch"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.11.12",
                "vulnerable": true
              }
            ],
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      },
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          "ID": "CVE-2022-0217"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611)."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
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                  "value": "CWE-611"
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                  "value": "CWE-776"
                }
              ]
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://prosody.im/security/advisory_20220113/",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://prosody.im/security/advisory_20220113/"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2040639",
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            },
            {
              "name": "https://prosody.im/security/advisory_20220113/1.patch",
              "refsource": "MISC",
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                "Vendor Advisory"
              ],
              "url": "https://prosody.im/security/advisory_20220113/1.patch"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-06-26T17:48Z",
      "publishedDate": "2022-08-26T18:15Z"
    }
  }
}


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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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.