Vulnerability-Lookup

GSD-2021-3047

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

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.

Aliases

CVE-2021-3047

Aliases

CVE-2021-3047

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-3047",
    "description": "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\u0027s 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.",
    "id": "GSD-2021-3047"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3047"
      ],
      "details": "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\u0027s 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.",
      "id": "GSD-2021-3047",
      "modified": "2023-12-13T01:23:34.885883Z",
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        "STATE": "PUBLIC",
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      },
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    "nvd.nist.gov": {
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      "lastModifiedDate": "2021-08-19T20:03Z",
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    }
  }
}

CVE-2021-3047 (GCVE-0-2021-3047)

Vulnerability from cvelistv5 – Published: 2021-08-11 17:10 – Updated: 2024-09-17 02:32

Title

PAN-OS: Weak Cryptography Used in Web Interface Authentication

Summary

Severity

4.2 (Medium)


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

CWE

CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Assigner

palo_alto mitre root

References

1 reference

URL	Tags
https://security.paloaltonetworks.com/CVE-2021-3047	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Palo Alto Networks	PAN-OS	Unaffected: 10.1.* Affected: 8.1 , < 8.1.19 (custom) Affected: 9.0 , < 9.0.14 (custom) Affected: 10.0 , < 10.0.4 (custom) Affected: 9.1 , < 9.1.10 (custom)

Date Public

2021-08-11 00:00

Credits

Palo Alto Networks thanks Google Security for discovering and reporting this issue.

Show details on NVD website

JSON

To clipboard

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      "timeline": [
        {
          "lang": "en",
          "time": "2021-08-11T00:00:00.000Z",
          "value": "Initial publication"
        }
      ],
      "title": "PAN-OS: Weak Cryptography Used in Web Interface Authentication",
      "workarounds": [
        {
          "lang": "en",
          "value": "There are no known workarounds for this issue."
        }
      ],
      "x_generator": {
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      "x_legacyV4Record": {
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          "ASSIGNER": "psirt@paloaltonetworks.com",
          "DATE_PUBLIC": "2021-08-11T16:00:00.000Z",
          "ID": "CVE-2021-3047",
          "STATE": "PUBLIC",
          "TITLE": "PAN-OS: Weak Cryptography Used in Web Interface Authentication"
        },
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                      "version": {
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                            "version_affected": "\u003c",
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                            "version_value": "8.1.19"
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            "lang": "eng",
            "value": "Palo Alto Networks thanks Google Security for discovering and reporting this issue."
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              "value": "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\u0027s 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."
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"
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              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.paloaltonetworks.com/CVE-2021-3047",
              "refsource": "MISC",
              "url": "https://security.paloaltonetworks.com/CVE-2021-3047"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "This issue is fixed in PAN-OS 8.1.19, PAN-OS 9.0.14, PAN-OS 9.1.10, PAN-OS 10.0.4, and all later PAN-OS versions."
          }
        ],
        "source": {
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          "discovery": "EXTERNAL"
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            "lang": "en",
            "time": "2021-08-11T00:00:00.000Z",
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        "work_around": [
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            "lang": "en",
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        "x_affectedList": [
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          "PAN-OS 8.0.18",
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    }
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  "cveMetadata": {
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    "assignerShortName": "palo_alto",
    "cveId": "CVE-2021-3047",
    "datePublished": "2021-08-11T17:10:17.831Z",
    "dateReserved": "2021-01-06T00:00:00.000Z",
    "dateUpdated": "2024-09-17T02:32:37.786Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.