CVE-2018-0155 (GCVE-0-2018-0155)

Vulnerability from cvelistv5 – Published: 2018-03-28 22:00 – Updated: 2026-01-12 21:52
VLAI CISA KEV
Summary
A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Cisco IOS and IOS XE Affected: Cisco IOS and IOS XE
Date Public
2018-03-28 00:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5b7381b5-e2ed-428d-b0dc-abd4b78b7d7f

Vulnerability ID: CVE-2018-0155

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEV entry: Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability | Affected: Cisco / Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches | Description: A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition. | Required action: Apply updates per vendor instructions. | Due date: 2022-03-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-0155
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-388
Feed CISA Known Exploited Vulnerabilities Catalog
Product Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches
Due Date 2022-03-17
Date Added 2022-03-03
Vendorproject Cisco
Vulnerabilityname Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:14:16.886Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "1040587",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1040587"
          },
          {
            "name": "103565",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/103565"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.6,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2018-0155",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T17:28:14.365306Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-03-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-12T21:52:53.398Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS and IOS XE",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco IOS and IOS XE"
            }
          ]
        }
      ],
      "datePublic": "2018-03-28T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-388",
              "description": "CWE-388",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-04-19T13:57:01.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "1040587",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1040587"
        },
        {
          "name": "103565",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103565"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "ID": "CVE-2018-0155",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IOS and IOS XE",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Cisco IOS and IOS XE"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-388"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "1040587",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1040587"
            },
            {
              "name": "103565",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/103565"
            },
            {
              "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd",
              "refsource": "CONFIRM",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd"
            },
            {
              "name": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05",
              "refsource": "MISC",
              "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2018-0155",
    "datePublished": "2018-03-28T22:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2026-01-12T21:52:53.398Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2018-0155",
      "cwes": "[\"CWE-388\"]",
      "dateAdded": "2022-03-03",
      "dueDate": "2022-03-17",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-0155",
      "product": "Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition.",
      "vendorProject": "Cisco",
      "vulnerabilityName": "Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability"
    },
    "epss": {
      "cve": "CVE-2018-0155",
      "date": "2026-05-27",
      "epss": "0.14503",
      "percentile": "0.94541"
    },
    "fkie_nvd": {
      "cisaActionDue": "2022-03-17",
      "cisaExploitAdd": "2022-03-03",
      "cisaRequiredAction": "Apply updates per vendor instructions.",
      "cisaVulnerabilityName": "Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability",
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3ACD48AE-B818-40CE-848B-90B9BF1D4255\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios_xe:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0D9506FB-B290-44AF-80A1-F698BEC3CBC0\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D720B575-15F7-49CA-AA2F-8594982DF9A0\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\\\\(k5\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D0C6A995-0878-49E6-B314-2278C8EB0E7E\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"06BF802C-C57A-402C-8EC2-E6176CB0FF86\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9832B73C-116D-4F81-9DE8-1BA930648E3F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"43AB5E31-8D8F-4009-9D6D-23C03EC9319A\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"663DCB07-F6B6-4DC6-8373-742A7C117E44\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"229DF042-CEF2-4D1E-9197-3656919BF917\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D8F261DC-26E4-48DC-A900-C41BF6CB4557\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4900m_switch_\\\\(k5\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CF434413-83D7-4D41-B9BF-4DF258B491E0\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\\\\(k5\\\\):-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BC27EF7D-924D-493C-B3C3-AC17EE9E5D44\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3ACD48AE-B818-40CE-848B-90B9BF1D4255\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios_xe:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0D9506FB-B290-44AF-80A1-F698BEC3CBC0\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E96AE552-ABC5-4101-ACF6-B7F20FFB4043\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la implementaci\\u00f3n de la descarga Bidirectional Forwarding Detection (BFD) de Cisco Catalyst 4500 Series Switches y Cisco Catalyst 4500-X Series Switches podr\\u00eda permitir que un atacante remoto no autenticado provoque el cierre inesperado del proceso iosd, lo que provocar\\u00eda una denegaci\\u00f3n de servicio (DoS). La vulnerabilidad se debe a la gesti\\u00f3n insuficiente de errores cuando la cabecera BFD de un paquete BFD est\\u00e1 incompleta. Un atacante podr\\u00eda explotar esta vulnerabilidad enviando un mensaje BFD manipulado a un switch afectado o a trav\\u00e9s de \\u00e9l. Un exploit con \\u00e9xito podr\\u00eda permitir que el atacante cause el reinicio del sistema. Esta vulnerabilidad afecta a Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5) y Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"}]",
      "id": "CVE-2018-0155",
      "lastModified": "2024-11-21T03:37:37.483",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"baseScore\": 8.6, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 4.0}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:C\", \"baseScore\": 7.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2018-03-28T22:29:00.420",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/103565\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1040587\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Third Party Advisory\", \"US Government Resource\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/103565\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1040587\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"US Government Resource\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-388\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-755\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-0155\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2018-03-28T22:29:00.420\",\"lastModified\":\"2026-01-13T22:22:09.993\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la implementaci\u00f3n de la descarga Bidirectional Forwarding Detection (BFD) de Cisco Catalyst 4500 Series Switches y Cisco Catalyst 4500-X Series Switches podr\u00eda permitir que un atacante remoto no autenticado provoque el cierre inesperado del proceso iosd, lo que provocar\u00eda una denegaci\u00f3n de servicio (DoS). La vulnerabilidad se debe a la gesti\u00f3n insuficiente de errores cuando la cabecera BFD de un paquete BFD est\u00e1 incompleta. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un mensaje BFD manipulado a un switch afectado o a trav\u00e9s de \u00e9l. Un exploit con \u00e9xito podr\u00eda permitir que el atacante cause el reinicio del sistema. Esta vulnerabilidad afecta a Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5) y Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:C\",\"baseScore\":7.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"cisaExploitAdd\":\"2022-03-03\",\"cisaActionDue\":\"2022-03-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability\",\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-388\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3ACD48AE-B818-40CE-848B-90B9BF1D4255\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D9506FB-B290-44AF-80A1-F698BEC3CBC0\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D720B575-15F7-49CA-AA2F-8594982DF9A0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\\\\(k5\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D0C6A995-0878-49E6-B314-2278C8EB0E7E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"06BF802C-C57A-402C-8EC2-E6176CB0FF86\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9832B73C-116D-4F81-9DE8-1BA930648E3F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"43AB5E31-8D8F-4009-9D6D-23C03EC9319A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"663DCB07-F6B6-4DC6-8373-742A7C117E44\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"229DF042-CEF2-4D1E-9197-3656919BF917\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\\\\(k10\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D8F261DC-26E4-48DC-A900-C41BF6CB4557\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4900m_switch_\\\\(k5\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF434413-83D7-4D41-B9BF-4DF258B491E0\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\\\\(k5\\\\):-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BC27EF7D-924D-493C-B3C3-AC17EE9E5D44\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3ACD48AE-B818-40CE-848B-90B9BF1D4255\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:3.6\\\\(2\\\\)e:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D9506FB-B290-44AF-80A1-F698BEC3CBC0\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E96AE552-ABC5-4101-ACF6-B7F20FFB4043\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/103565\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1040587\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Third Party Advisory\",\"US Government Resource\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/103565\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1040587\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"US Government Resource\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.securitytracker.com/id/1040587\", \"name\": \"1040587\", \"tags\": [\"vdb-entry\", \"x_refsource_SECTRACK\", \"x_transferred\"]}, {\"url\": \"http://www.securityfocus.com/bid/103565\", \"name\": \"103565\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\", \"x_transferred\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-05T03:14:16.886Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 8.6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2018-0155\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-08T17:28:14.365306Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2022-03-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155\"}}}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-08T16:06:39.343Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"Cisco IOS and IOS XE\", \"versions\": [{\"status\": \"affected\", \"version\": \"Cisco IOS and IOS XE\"}]}], \"datePublic\": \"2018-03-28T00:00:00.000Z\", \"references\": [{\"url\": \"http://www.securitytracker.com/id/1040587\", \"name\": \"1040587\", \"tags\": [\"vdb-entry\", \"x_refsource_SECTRACK\"]}, {\"url\": \"http://www.securityfocus.com/bid/103565\", \"name\": \"103565\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-388\", \"description\": \"CWE-388\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2018-04-19T13:57:01.000Z\"}, \"x_legacyV4Record\": {\"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"Cisco IOS and IOS XE\"}]}, \"product_name\": \"Cisco IOS and IOS XE\"}]}, \"vendor_name\": \"n/a\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"http://www.securitytracker.com/id/1040587\", \"name\": \"1040587\", \"refsource\": \"SECTRACK\"}, {\"url\": \"http://www.securityfocus.com/bid/103565\", \"name\": \"103565\", \"refsource\": \"BID\"}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"name\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"name\": \"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-388\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2018-0155\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"psirt@cisco.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2018-0155\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-12T21:52:53.398Z\", \"dateReserved\": \"2017-11-27T00:00:00.000Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2018-03-28T22:00:00.000Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.