CVE-2022-43972 (GCVE-0-2022-43972)

Vulnerability from cvelistv5 – Published: 2023-01-09 00:00 – Updated: 2025-04-09 14:22
VLAI?
Title
Null pointer dereference in Linksys WRT54GL
Summary
A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linksys WRT54GL Wireless-G Broadband Router Affected: Firmware , ≤ 4.30.18.006 (custom)
Create a notification for this product.
Credits
Jessie Chick of Trellix ARC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T13:47:05.079Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://youtu.be/73-1lhvJPNg"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://youtu.be/TeWAmZaKQ_w"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://youtu.be/RfWVYCUBNZ0"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-43972",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-09T14:21:57.291460Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-09T14:22:24.605Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WRT54GL Wireless-G Broadband Router",
          "vendor": "Linksys",
          "versions": [
            {
              "lessThanOrEqual": "4.30.18.006",
              "status": "affected",
              "version": "Firmware",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jessie Chick of Trellix ARC"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-09T00:00:00.000Z",
        "orgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
        "shortName": "trellix"
      },
      "references": [
        {
          "url": "https://youtu.be/73-1lhvJPNg"
        },
        {
          "url": "https://youtu.be/TeWAmZaKQ_w"
        },
        {
          "url": "https://youtu.be/RfWVYCUBNZ0"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Null pointer dereference in Linksys WRT54GL",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "01626437-bf8f-4d1c-912a-893b5eb04808",
    "assignerShortName": "trellix",
    "cveId": "CVE-2022-43972",
    "datePublished": "2023-01-09T00:00:00.000Z",
    "dateReserved": "2022-10-28T00:00:00.000Z",
    "dateUpdated": "2025-04-09T14:22:24.605Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linksys:wrt54gl_firmware:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"4.30.18.006\", \"matchCriteriaId\": \"AC08DC7C-7FBB-4CD6-89F1-7F4997BC9CAE\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:linksys:wrt54gl:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"04AA9149-2F72-4585-8A41-66AE3D573197\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.\"}, {\"lang\": \"es\", \"value\": \"Existe una vulnerabilidad de desreferencia de puntero nulo en el router Linksys WRT54GL Wireless-G Broadband con firmware \u0026lt;= 4.30.18.006. Un atacante no autenticado puede desencadenar una desreferencia de puntero nulo en la funci\\u00f3n SOAP_action dentro del binario upnp a trav\\u00e9s de una solicitud POST maliciosa que invoca la acci\\u00f3n AddPortMapping.\"}]",
      "id": "CVE-2022-43972",
      "lastModified": "2024-11-21T07:27:27.420",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"trellixpsirt@trellix.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2023-01-09T21:15:10.920",
      "references": "[{\"url\": \"https://youtu.be/73-1lhvJPNg\", \"source\": \"trellixpsirt@trellix.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://youtu.be/RfWVYCUBNZ0\", \"source\": \"trellixpsirt@trellix.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://youtu.be/TeWAmZaKQ_w\", \"source\": \"trellixpsirt@trellix.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://youtu.be/73-1lhvJPNg\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://youtu.be/RfWVYCUBNZ0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://youtu.be/TeWAmZaKQ_w\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "trellixpsirt@trellix.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"trellixpsirt@trellix.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-43972\",\"sourceIdentifier\":\"trellixpsirt@trellix.com\",\"published\":\"2023-01-09T21:15:10.920\",\"lastModified\":\"2024-11-21T07:27:27.420\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.\"},{\"lang\":\"es\",\"value\":\"Existe una vulnerabilidad de desreferencia de puntero nulo en el router Linksys WRT54GL Wireless-G Broadband con firmware \u0026lt;= 4.30.18.006. Un atacante no autenticado puede desencadenar una desreferencia de puntero nulo en la funci\u00f3n SOAP_action dentro del binario upnp a trav\u00e9s de una solicitud POST maliciosa que invoca la acci\u00f3n AddPortMapping.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"trellixpsirt@trellix.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"trellixpsirt@trellix.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linksys:wrt54gl_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.30.18.006\",\"matchCriteriaId\":\"AC08DC7C-7FBB-4CD6-89F1-7F4997BC9CAE\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:linksys:wrt54gl:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"04AA9149-2F72-4585-8A41-66AE3D573197\"}]}]}],\"references\":[{\"url\":\"https://youtu.be/73-1lhvJPNg\",\"source\":\"trellixpsirt@trellix.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://youtu.be/RfWVYCUBNZ0\",\"source\":\"trellixpsirt@trellix.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://youtu.be/TeWAmZaKQ_w\",\"source\":\"trellixpsirt@trellix.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://youtu.be/73-1lhvJPNg\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://youtu.be/RfWVYCUBNZ0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://youtu.be/TeWAmZaKQ_w\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Null pointer dereference in Linksys WRT54GL\", \"providerMetadata\": {\"orgId\": \"01626437-bf8f-4d1c-912a-893b5eb04808\", \"shortName\": \"trellix\", \"dateUpdated\": \"2023-01-09T00:00:00.000Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.\"}], \"affected\": [{\"vendor\": \"Linksys\", \"product\": \"WRT54GL Wireless-G Broadband Router\", \"versions\": [{\"version\": \"Firmware\", \"status\": \"affected\", \"lessThanOrEqual\": \"4.30.18.006\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://youtu.be/73-1lhvJPNg\"}, {\"url\": \"https://youtu.be/TeWAmZaKQ_w\"}, {\"url\": \"https://youtu.be/RfWVYCUBNZ0\"}], \"credits\": [{\"lang\": \"en\", \"value\": \"Jessie Chick of Trellix ARC\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\"}}], \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"lang\": \"en\", \"description\": \"CWE-476: NULL Pointer Dereference\", \"cweId\": \"CWE-476\"}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"source\": {\"discovery\": \"EXTERNAL\"}}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T13:47:05.079Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://youtu.be/73-1lhvJPNg\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://youtu.be/TeWAmZaKQ_w\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://youtu.be/RfWVYCUBNZ0\", \"tags\": [\"x_transferred\"]}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-43972\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-09T14:21:57.291460Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-09T14:22:08.769Z\"}}]}",
      "cveMetadata": "{\"state\": \"PUBLISHED\", \"cveId\": \"CVE-2022-43972\", \"assignerOrgId\": \"01626437-bf8f-4d1c-912a-893b5eb04808\", \"assignerShortName\": \"trellix\", \"dateUpdated\": \"2025-04-09T14:22:24.605Z\", \"dateReserved\": \"2022-10-28T00:00:00.000Z\", \"datePublished\": \"2023-01-09T00:00:00.000Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.