GSD-2023-0652

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (<= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.
Aliases
Aliases
CVE-2023-0652
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{
  "GSD": {
    "alias": "CVE-2023-0652",
    "id": "GSD-2023-0652"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-0652"
      ],
      "details": "Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (\u003c= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.",
      "id": "GSD-2023-0652",
      "modified": "2023-12-13T01:20:22.947192Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cna@cloudflare.com",
        "ID": "CVE-2023-0652",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "WARP",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unaffected",
                            "versions": [
                              {
                                "changes": [
                                  {
                                    "at": "2023.3.381.0",
                                    "status": "unaffected"
                                  }
                                ],
                                "lessThanOrEqual": "2022.5.309.0",
                                "status": "affected",
                                "version": "0",
                                "versionType": "N/A"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Cloudflare"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Jan-Luca Gruber"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (\u003c= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.1.0-dev"
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-59",
                "lang": "eng",
                "value": "CWE-59 Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release",
            "refsource": "MISC",
            "url": "https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release"
          },
          {
            "name": "https://developers.cloudflare.com/warp-client/get-started/windows/",
            "refsource": "MISC",
            "url": "https://developers.cloudflare.com/warp-client/get-started/windows/"
          },
          {
            "name": "https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9",
            "refsource": "MISC",
            "url": "https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2023.3.381.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cna@cloudflare.com",
          "ID": "CVE-2023-0652"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (\u003c= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-59"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://developers.cloudflare.com/warp-client/get-started/windows/",
              "refsource": "MISC",
              "tags": [
                "Product"
              ],
              "url": "https://developers.cloudflare.com/warp-client/get-started/windows/"
            },
            {
              "name": "https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release"
            },
            {
              "name": "https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
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              "url": "https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-04-17T16:53Z",
      "publishedDate": "2023-04-06T10:15Z"
    }
  }
}


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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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