CVE-2020-2002 PAN-OS: Spoofed Kerberos key distribution center authentication bypass

2020-05-1300:00:00

CWE-290

palo_alto

www.cve.org

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.6%

JSON

An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.

CNA Affected

[
  {
    "product": "PAN-OS",
    "vendor": "Palo Alto Networks",
    "versions": [
      {
        "status": "affected",
        "version": "8.0.*"
      },
      {
        "changes": [
          {
            "at": "8.1.13",
            "status": "unaffected"
          }
        ],
        "lessThan": "8.1.13",
        "status": "affected",
        "version": "8.1",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "9.0.6",
            "status": "unaffected"
          }
        ],
        "lessThan": "9.0.6",
        "status": "affected",
        "version": "9.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "7.1.26",
            "status": "unaffected"
          }
        ],
        "lessThan": "7.1.26",
        "status": "affected",
        "version": "7.1",
        "versionType": "custom"
      }
    ]
  }
]