csaf_certbund - wid-sec-w-2023-0298

WID-SEC-W-2023-0298

Vulnerability from csaf_certbund - Published: 2023-02-06 23:00 - Updated: 2023-02-06 23:00

Summary

Zyxel Firewall: Schwachstelle ermöglicht Codeausführung

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Zyxel ist ein Hersteller von Netzwerkkomponenten, u.a. von Firewalls.

Angriff

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Zyxel Firewall ausnutzen, um beliebigen Programmcode auszuführen.

Betroffene Betriebssysteme

- Sonstiges

JSON

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{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Zyxel ist ein Hersteller von Netzwerkkomponenten, u.a. von Firewalls.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Zyxel Firewall ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-0298 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0298.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0298 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0298"
      },
      {
        "category": "external",
        "summary": "Zyxel Security Advisory vom 2023-02-06",
        "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls"
      }
    ],
    "source_lang": "en-US",
    "title": "Zyxel Firewall: Schwachstelle erm\u00f6glicht Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2023-02-06T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:43:08.724+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-0298",
      "initial_release_date": "2023-02-06T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-02-06T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Zyxel Firewall \u003c ZLD V5.35",
                "product": {
                  "name": "Zyxel Firewall \u003c ZLD V5.35",
                  "product_id": "T026164",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:zyxel:firewall:zld_v5.35"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Zyxel Firewall \u003c ZLD V4.73",
                "product": {
                  "name": "Zyxel Firewall \u003c ZLD V4.73",
                  "product_id": "T026165",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:zyxel:firewall:zld_v4.73"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firewall"
          }
        ],
        "category": "vendor",
        "name": "Zyxel"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-38547",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Zyxel Firewalls. Diese beruht auf einer Befehlsinjektionsschwachstelle im CLI-Befehl einiger Zyxel ZyWALL/USG Firmwares. Ein authentisierter Angreifer kann das ausnutzen, um Betriebssystembefehle aus der Ferne auszuf\u00fchren."
        }
      ],
      "release_date": "2023-02-06T23:00:00.000+00:00",
      "title": "CVE-2022-38547"
    }
  ]
}

CVE-2022-38547 (GCVE-0-2022-38547)

Vulnerability from cvelistv5 – Published: 2023-02-07 00:00 – Updated: 2025-03-25 15:39

Summary

A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands.

Severity ?

7.2 (High)


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

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

Zyxel

References

URL

Tags

https://www.zyxel.com/global/en/support/security-…

Impacted products

Vendor

Product

Version

Zyxel

ZyWALL/USG series firmware

Affected: 4.20 through 4.72

Zyxel	VPN series firmware	Affected: 4.30 through 5.32
Zyxel	USG FLEX series firmware	Affected: 4.50 through 5.32
Zyxel	ATP series firmware	Affected: 4.32 through 5.32

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T10:54:04.001Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-38547",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-25T15:39:35.477790Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-25T15:39:42.181Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ZyWALL/USG series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "4.20 through 4.72"
            }
          ]
        },
        {
          "product": "VPN series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "4.30 through 5.32"
            }
          ]
        },
        {
          "product": "USG FLEX series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "4.50 through 5.32"
            }
          ]
        },
        {
          "product": "ATP series firmware",
          "vendor": "Zyxel",
          "versions": [
            {
              "status": "affected",
              "version": "4.32 through 5.32"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-02-07T00:00:00.000Z",
        "orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
        "shortName": "Zyxel"
      },
      "references": [
        {
          "url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
    "assignerShortName": "Zyxel",
    "cveId": "CVE-2022-38547",
    "datePublished": "2023-02-07T00:00:00.000Z",
    "dateReserved": "2022-08-22T00:00:00.000Z",
    "dateUpdated": "2025-03-25T15:39:42.181Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

WID-SEC-W-2023-0298

CVE-2022-38547 (GCVE-0-2022-38547)

Tags

Sightings

Nomenclature