{
  "GSD": {
    "alias": "CVE-2021-34993",
    "description": "This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.",
    "id": "GSD-2021-34993"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-34993"
      ],
      "details": "This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.",
      "id": "GSD-2021-34993",
      "modified": "2023-12-13T01:23:14.597464Z",
      "schema_version": "1.4.0"
    }
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        "ASSIGNER": "zdi-disclosures@trendmicro.com",
        "ID": "CVE-2021-34993",
        "STATE": "PUBLIC"
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      "affects": {
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          "vendor_data": [
            {
              "product": {
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                  {
                    "product_name": "CommCell",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "11.22.22"
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              "vendor_name": "Commvault"
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      "credit": "Brandon Perry, Justin Kennedy and Steven Seeley of Source Incite",
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      "data_version": "4.0",
      "description": {
        "description_data": [
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            "value": "This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706."
          }
        ]
      },
      "impact": {
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
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                "value": "CWE-287: Improper Authentication"
              }
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          }
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      "references": {
        "reference_data": [
          {
            "name": "https://www.zerodayinitiative.com/advisories/ZDI-21-1328/",
            "refsource": "MISC",
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1328/"
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        "nodes": [
          {
            "children": [],
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                "cpe23Uri": "cpe:2.3:a:commvault:commcell:11.22.22:*:*:*:*:*:*:*",
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                "vulnerable": true
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          "ID": "CVE-2021-34993"
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        },
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                "VDB Entry"
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
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            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
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          "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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "exploitabilityScore": 3.9,
          "impactScore": 5.9
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      },
      "lastModifiedDate": "2022-01-22T03:49Z",
      "publishedDate": "2022-01-13T22:15Z"
    }
  }
}