cnvd - cnvd-2021-22168

cnvd-2021-22168

Vulnerability from cnvd

Title: Palo Alto Networks PAN-OS SSL VPN组件验证绕过漏洞

Description:

Palo Alto Networks PAN-OS是一套为其防火墙设备开发的操作系统。

Palo Alto Networks PAN-OS SSL VPN组件存在验证绕过漏洞，远程攻击者可利用该漏洞提交特殊的请求，可绕过基于证书限制的认证，未授权访问应用。

Severity: 中

Patch Name: Palo Alto Networks PAN-OS SSL VPN组件验证绕过漏洞的补丁

Patch Description:

Palo Alto Networks PAN-OS是一套为其防火墙设备开发的操作系统。

Palo Alto Networks PAN-OS SSL VPN组件存在验证绕过漏洞，远程攻击者可利用该漏洞提交特殊的请求，可绕过基于证书限制的认证，未授权访问应用。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://security.paloaltonetworks.com/CVE-2020-2050

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-2050

Impacted products

Name
['Palo Alto Networks PAN-OS >=8.1.0，<8.1.17', 'Palo Alto Networks PAN-OS >=9.0.0，<9.0.11', 'Palo Alto Networks PAN-OS >=9.1.0，<9.1.5', 'Palo Alto Networks PAN-OS >=10.0.0，<10.0.1']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-2050",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-2050"
    }
  },
  "description": "Palo Alto Networks PAN-OS\u662f\u4e00\u5957\u4e3a\u5176\u9632\u706b\u5899\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nPalo Alto Networks PAN-OS SSL VPN\u7ec4\u4ef6\u5b58\u5728\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u7ed5\u8fc7\u57fa\u4e8e\u8bc1\u4e66\u9650\u5236\u7684\u8ba4\u8bc1\uff0c\u672a\u6388\u6743\u8bbf\u95ee\u5e94\u7528\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a \r\nhttps://security.paloaltonetworks.com/CVE-2020-2050",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-22168",
  "openTime": "2021-03-25",
  "patchDescription": "Palo Alto Networks PAN-OS\u662f\u4e00\u5957\u4e3a\u5176\u9632\u706b\u5899\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nPalo Alto Networks PAN-OS SSL VPN\u7ec4\u4ef6\u5b58\u5728\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u7ed5\u8fc7\u57fa\u4e8e\u8bc1\u4e66\u9650\u5236\u7684\u8ba4\u8bc1\uff0c\u672a\u6388\u6743\u8bbf\u95ee\u5e94\u7528\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Palo Alto Networks PAN-OS SSL VPN\u7ec4\u4ef6\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Palo Alto Networks PAN-OS \u003e=8.1.0\uff0c\u003c8.1.17",
      "Palo Alto Networks PAN-OS \u003e=9.0.0\uff0c\u003c9.0.11",
      "Palo Alto Networks PAN-OS \u003e=9.1.0\uff0c\u003c9.1.5",
      "Palo Alto Networks PAN-OS \u003e=10.0.0\uff0c\u003c10.0.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-2050",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-16",
  "title": "Palo Alto Networks PAN-OS SSL VPN\u7ec4\u4ef6\u9a8c\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2020-2050 (GCVE-0-2020-2050)

Vulnerability from cvelistv5

Published

2020-11-12 00:05

Modified

2024-09-17 00:11

Severity ?

8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CWE

CWE-285 - Improper Authorization

Summary

An authentication bypass vulnerability exists in the GlobalProtect SSL VPN component of Palo Alto Networks PAN-OS software that allows an attacker to bypass all client certificate checks with an invalid certificate. A remote attacker can successfully authenticate as any user and gain access to restricted VPN network resources when the gateway or portal is configured to rely entirely on certificate-based authentication. Impacted features that use SSL VPN with client certificate verification are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN In configurations where client certificate verification is used in conjunction with other authentication methods, the protections added by the certificate check are ignored as a result of this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.17; PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

References

▼	URL	Tags
	https://security.paloaltonetworks.com/CVE-2020-2050	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Palo Alto Networks	PAN-OS	Version: 8.1 < 8.1.17 Version: 9.0 < 9.0.11 Version: 9.1 < 9.1.5 Version: 10.0 < 10.0.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T06:54:00.576Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security.paloaltonetworks.com/CVE-2020-2050"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PAN-OS",
          "vendor": "Palo Alto Networks",
          "versions": [
            {
              "changes": [
                {
                  "at": "8.1.17",
                  "status": "unaffected"
                }
              ],
              "lessThan": "8.1.17",
              "status": "affected",
              "version": "8.1",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "9.0.11",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.0.11",
              "status": "affected",
              "version": "9.0",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "9.1.5",
                  "status": "unaffected"
                }
              ],
              "lessThan": "9.1.5",
              "status": "affected",
              "version": "9.1",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "10.0.1",
                  "status": "unaffected"
                }
              ],
              "lessThan": "10.0.1",
              "status": "affected",
              "version": "10.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "This issue is only applicable to PAN-OS appliances using the GlobalProtect SSL VPN gateway or portal configured to allow users to authenticate with client certificate authentication.\n\nThis issue can not be exploited if client certificate authentication is not in use.\n\nOther forms of authentication are not impacted by this issue."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review."
        }
      ],
      "datePublic": "2020-11-11T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "An authentication bypass vulnerability exists in the GlobalProtect SSL VPN component of Palo Alto Networks PAN-OS software that allows an attacker to bypass all client certificate checks with an invalid certificate. A remote attacker can successfully authenticate as any user and gain access to restricted VPN network resources when the gateway or portal is configured to rely entirely on certificate-based authentication. Impacted features that use SSL VPN with client certificate verification are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN In configurations where client certificate verification is used in conjunction with other authentication methods, the protections added by the certificate check are ignored as a result of this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.17; PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Palo Alto Networks is not aware of any malicious exploitation of this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-285",
              "description": "CWE-285 Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-11-12T00:05:22",
        "orgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
        "shortName": "palo_alto"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security.paloaltonetworks.com/CVE-2020-2050"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "This issue is fixed in PAN-OS 8.1.17, PAN-OS 9.0.11, PAN-OS 9.1.5, PAN-OS 10.0.1, and all later PAN-OS versions."
        }
      ],
      "source": {
        "defect": [
          "PAN-146650"
        ],
        "discovery": "INTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2020-11-11T00:00:00",
          "value": "Initial publication"
        }
      ],
      "title": "PAN-OS: Authentication bypass vulnerability in GlobalProtect SSL VPN client certificate verification",
      "workarounds": [
        {
          "lang": "en",
          "value": "This issue can be mitigated by configuring GlobalProtect SSL VPN to require gateway and portal users to authenticate with their credentials. Other authentication methods are not impacted by this issue."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@paloaltonetworks.com",
          "DATE_PUBLIC": "2020-11-11T17:00:00.000Z",
          "ID": "CVE-2020-2050",
          "STATE": "PUBLIC",
          "TITLE": "PAN-OS: Authentication bypass vulnerability in GlobalProtect SSL VPN client certificate verification"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "PAN-OS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "8.1",
                            "version_value": "8.1.17"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "9.0",
                            "version_value": "9.0.11"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "9.1",
                            "version_value": "9.1.5"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "10.0",
                            "version_value": "10.0.1"
                          },
                          {
                            "version_affected": "!\u003e=",
                            "version_name": "8.1",
                            "version_value": "8.1.17"
                          },
                          {
                            "version_affected": "!\u003e=",
                            "version_name": "9.0",
                            "version_value": "9.0.11"
                          },
                          {
                            "version_affected": "!\u003e=",
                            "version_name": "9.1",
                            "version_value": "9.1.5"
                          },
                          {
                            "version_affected": "!\u003e=",
                            "version_name": "10.0",
                            "version_value": "10.0.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Palo Alto Networks"
              }
            ]
          }
        },
        "configuration": [
          {
            "lang": "en",
            "value": "This issue is only applicable to PAN-OS appliances using the GlobalProtect SSL VPN gateway or portal configured to allow users to authenticate with client certificate authentication.\n\nThis issue can not be exploited if client certificate authentication is not in use.\n\nOther forms of authentication are not impacted by this issue."
          }
        ],
        "credit": [
          {
            "lang": "eng",
            "value": "This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An authentication bypass vulnerability exists in the GlobalProtect SSL VPN component of Palo Alto Networks PAN-OS software that allows an attacker to bypass all client certificate checks with an invalid certificate. A remote attacker can successfully authenticate as any user and gain access to restricted VPN network resources when the gateway or portal is configured to rely entirely on certificate-based authentication. Impacted features that use SSL VPN with client certificate verification are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN In configurations where client certificate verification is used in conjunction with other authentication methods, the protections added by the certificate check are ignored as a result of this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.17; PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "Palo Alto Networks is not aware of any malicious exploitation of this issue."
          }
        ],
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-285 Improper Authorization"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.paloaltonetworks.com/CVE-2020-2050",
              "refsource": "MISC",
              "url": "https://security.paloaltonetworks.com/CVE-2020-2050"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "This issue is fixed in PAN-OS 8.1.17, PAN-OS 9.0.11, PAN-OS 9.1.5, PAN-OS 10.0.1, and all later PAN-OS versions."
          }
        ],
        "source": {
          "defect": [
            "PAN-146650"
          ],
          "discovery": "INTERNAL"
        },
        "timeline": [
          {
            "lang": "en",
            "time": "2020-11-11T00:00:00",
            "value": "Initial publication"
          }
        ],
        "work_around": [
          {
            "lang": "en",
            "value": "This issue can be mitigated by configuring GlobalProtect SSL VPN to require gateway and portal users to authenticate with their credentials. Other authentication methods are not impacted by this issue."
          }
        ],
        "x_advisoryEoL": false,
        "x_affectedList": [
          "PAN-OS 10.0.0",
          "PAN-OS 10.0",
          "PAN-OS 9.1.4",
          "PAN-OS 9.1.3-h1",
          "PAN-OS 9.1.3",
          "PAN-OS 9.1.2-h1",
          "PAN-OS 9.1.2",
          "PAN-OS 9.1.1",
          "PAN-OS 9.1.0-h3",
          "PAN-OS 9.1.0-h2",
          "PAN-OS 9.1.0-h1",
          "PAN-OS 9.1.0",
          "PAN-OS 9.1",
          "PAN-OS 9.0.10",
          "PAN-OS 9.0.9-h1",
          "PAN-OS 9.0.9",
          "PAN-OS 9.0.8",
          "PAN-OS 9.0.7",
          "PAN-OS 9.0.6",
          "PAN-OS 9.0.5",
          "PAN-OS 9.0.4",
          "PAN-OS 9.0.3-h3",
          "PAN-OS 9.0.3-h2",
          "PAN-OS 9.0.3-h1",
          "PAN-OS 9.0.3",
          "PAN-OS 9.0.2-h4",
          "PAN-OS 9.0.2-h3",
          "PAN-OS 9.0.2-h2",
          "PAN-OS 9.0.2-h1",
          "PAN-OS 9.0.2",
          "PAN-OS 9.0.1",
          "PAN-OS 9.0.0",
          "PAN-OS 9.0",
          "PAN-OS 8.1.16",
          "PAN-OS 8.1.15-h3",
          "PAN-OS 8.1.15-h2",
          "PAN-OS 8.1.15-h1",
          "PAN-OS 8.1.15",
          "PAN-OS 8.1.14-h2",
          "PAN-OS 8.1.14-h1",
          "PAN-OS 8.1.14",
          "PAN-OS 8.1.13",
          "PAN-OS 8.1.12",
          "PAN-OS 8.1.11",
          "PAN-OS 8.1.10",
          "PAN-OS 8.1.9-h4",
          "PAN-OS 8.1.9-h3",
          "PAN-OS 8.1.9-h2",
          "PAN-OS 8.1.9-h1",
          "PAN-OS 8.1.9",
          "PAN-OS 8.1.8-h5",
          "PAN-OS 8.1.8-h4",
          "PAN-OS 8.1.8-h3",
          "PAN-OS 8.1.8-h2",
          "PAN-OS 8.1.8-h1",
          "PAN-OS 8.1.8",
          "PAN-OS 8.1.7",
          "PAN-OS 8.1.6-h2",
          "PAN-OS 8.1.6-h1",
          "PAN-OS 8.1.6",
          "PAN-OS 8.1.5",
          "PAN-OS 8.1.4",
          "PAN-OS 8.1.3",
          "PAN-OS 8.1.2",
          "PAN-OS 8.1.1",
          "PAN-OS 8.1.0",
          "PAN-OS 8.1"
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d6c1279f-00f6-4ef7-9217-f89ffe703ec0",
    "assignerShortName": "palo_alto",
    "cveId": "CVE-2020-2050",
    "datePublished": "2020-11-12T00:05:22.986621Z",
    "dateReserved": "2019-12-04T00:00:00",
    "dateUpdated": "2024-09-17T00:11:04.982Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted