CVE-2021-3063 PAN-OS: Denial-of-Service (DoS) Vulnerability in GlobalProtect Portal and Gateway Interfaces

2021-11-1000:00:00

CWE-755

palo_alto

www.cve.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

38.9%

JSON

An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.

CNA Affected

[
  {
    "product": "PAN-OS",
    "vendor": "Palo Alto Networks",
    "versions": [
      {
        "changes": [
          {
            "at": "8.1.21",
            "status": "unaffected"
          }
        ],
        "lessThan": "8.1.21",
        "status": "affected",
        "version": "8.1",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "9.0.14-h4",
            "status": "unaffected"
          }
        ],
        "lessThan": "9.0.14-h4",
        "status": "affected",
        "version": "9.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "10.0.8-h4",
            "status": "unaffected"
          }
        ],
        "lessThan": "10.0.8-h4",
        "status": "affected",
        "version": "10.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "10.1.3",
            "status": "unaffected"
          }
        ],
        "lessThan": "10.1.3",
        "status": "affected",
        "version": "10.1",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "9.1.11-h3",
            "status": "unaffected"
          }
        ],
        "lessThan": "9.1.11-h3",
        "status": "affected",
        "version": "9.1",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Prisma Access",
    "vendor": "Palo Alto Networks",
    "versions": [
      {
        "status": "unaffected",
        "version": "2.2 all"
      },
      {
        "status": "unaffected",
        "version": "2.1 all"
      }
    ]
  }
]