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Palo_altoCVELIST:CVE-2021-3047

HistoryAug 11, 2021 - 12:00 a.m.

CVE-2021-3047 PAN-OS: Weak Cryptography Used in Web Interface Authentication

2021-08-1100:00:00

CWE-338

palo_alto

www.cve.org

4.2 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

4.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.9%

JSON

A cryptographically weak pseudo-random number generator (PRNG) is used during authentication to the Palo Alto Networks PAN-OS web interface. This enables an authenticated attacker, with the capability to observe their own authentication secrets over a long duration on the PAN-OS appliance, to impersonate another authenticated web interface administrator’s session. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.4. PAN-OS 10.1 versions are not impacted.

CNA Affected

[
  {
    "product": "PAN-OS",
    "vendor": "Palo Alto Networks",
    "versions": [
      {
        "status": "unaffected",
        "version": "10.1.*"
      },
      {
        "changes": [
          {
            "at": "8.1.19",
            "status": "unaffected"
          }
        ],
        "lessThan": "8.1.19",
        "status": "affected",
        "version": "8.1",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "9.0.14",
            "status": "unaffected"
          }
        ],
        "lessThan": "9.0.14",
        "status": "affected",
        "version": "9.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "10.0.4",
            "status": "unaffected"
          }
        ],
        "lessThan": "10.0.4",
        "status": "affected",
        "version": "10.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "9.1.10",
            "status": "unaffected"
          }
        ],
        "lessThan": "9.1.10",
        "status": "affected",
        "version": "9.1",
        "versionType": "custom"
      }
    ]
  }
]

References

security.paloaltonetworks.com/CVE-2021-3047

4.2 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

4.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.9%

JSON

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