FKIE_CVE-2022-20685

Vulnerability from fkie_nvd - Published: 2024-11-15 16:15 - Updated: 2025-06-24 14:47
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
References
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-xss-NXOxDhRQNot Applicable
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLujVendor Advisory
Impacted products
Vendor Product Version
cisco cyber_vision 3.0.0
cisco cyber_vision 3.0.1
cisco cyber_vision 3.0.2
cisco cyber_vision 3.0.3
cisco cyber_vision 3.0.4
cisco cyber_vision 3.0.5
cisco cyber_vision 3.0.6
cisco cyber_vision 3.1.0
cisco cyber_vision 3.1.1
cisco cyber_vision 3.1.2
cisco cyber_vision 3.2.0
cisco cyber_vision 3.2.1
cisco cyber_vision 3.2.2
cisco cyber_vision 3.2.3
cisco cyber_vision 3.2.4
cisco cyber_vision 4.0.0
cisco cyber_vision 4.0.1
cisco firepower_threat_defense 6.2.3
cisco firepower_threat_defense 6.2.3.1
cisco firepower_threat_defense 6.2.3.2
cisco firepower_threat_defense 6.2.3.3
cisco firepower_threat_defense 6.2.3.4
cisco firepower_threat_defense 6.2.3.5
cisco firepower_threat_defense 6.2.3.6
cisco firepower_threat_defense 6.2.3.7
cisco firepower_threat_defense 6.2.3.8
cisco firepower_threat_defense 6.2.3.9
cisco firepower_threat_defense 6.2.3.10
cisco firepower_threat_defense 6.2.3.11
cisco firepower_threat_defense 6.2.3.12
cisco firepower_threat_defense 6.2.3.13
cisco firepower_threat_defense 6.2.3.14
cisco firepower_threat_defense 6.2.3.15
cisco firepower_threat_defense 6.2.3.16
cisco firepower_threat_defense 6.2.3.17
cisco firepower_threat_defense 6.2.3.18
cisco firepower_threat_defense 6.4.0
cisco firepower_threat_defense 6.4.0.1
cisco firepower_threat_defense 6.4.0.2
cisco firepower_threat_defense 6.4.0.3
cisco firepower_threat_defense 6.4.0.4
cisco firepower_threat_defense 6.4.0.5
cisco firepower_threat_defense 6.4.0.6
cisco firepower_threat_defense 6.4.0.7
cisco firepower_threat_defense 6.4.0.8
cisco firepower_threat_defense 6.4.0.9
cisco firepower_threat_defense 6.4.0.10
cisco firepower_threat_defense 6.4.0.11
cisco firepower_threat_defense 6.4.0.12
cisco firepower_threat_defense 6.6.0
cisco firepower_threat_defense 6.6.0.1
cisco firepower_threat_defense 6.6.1
cisco firepower_threat_defense 6.6.3
cisco firepower_threat_defense 6.6.4
cisco firepower_threat_defense 6.6.5
cisco firepower_threat_defense 6.7.0
cisco firepower_threat_defense 6.7.0.1
cisco firepower_threat_defense 6.7.0.2
cisco firepower_threat_defense 6.7.0.3
cisco firepower_threat_defense 7.0.0
cisco firepower_threat_defense 7.0.0.1
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 3.17.0s
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 3.17.1s
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.1
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.5
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.6
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.7a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.9
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.6.10
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.2
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.3
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.4
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.5
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 16.12.6
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.1.1
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.2.1r
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.3.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.3.2
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.3.3
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.3.4
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.3.4a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.4.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.4.1b
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.4.2
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.5.1
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.5.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.6.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine 17.7.1a
cisco unified_threat_defense_snort_intrusion_prevention_system_engine denali-16.3.3
cisco unified_threat_defense_snort_intrusion_prevention_system_engine denali-16.3.4
cisco unified_threat_defense_snort_intrusion_prevention_system_engine denali-16.3.5
cisco unified_threat_defense_snort_intrusion_prevention_system_engine denali-16.3.7
cisco unified_threat_defense_snort_intrusion_prevention_system_engine denali-16.3.9
cisco unified_threat_defense_snort_intrusion_prevention_system_engine everest-16.6.2
cisco unified_threat_defense_snort_intrusion_prevention_system_engine everest-16.6.3
cisco unified_threat_defense_snort_intrusion_prevention_system_engine everest-16.6.4
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.2
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.3
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.4
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.5
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.6
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.7
cisco unified_threat_defense_snort_intrusion_prevention_system_engine fuji-16.9.8
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\nThis vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el preprocesador Modbus del motor de detecci\u00f3n Snort podr\u00eda permitir que un atacante remoto no autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad se debe a un desbordamiento de enteros durante el procesamiento del tr\u00e1fico Modbus. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando tr\u00e1fico Modbus manipulado a trav\u00e9s de un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir que el atacante provoque que el proceso Snort se bloquee, lo que provocar\u00eda que se detenga la inspecci\u00f3n del tr\u00e1fico. Cisco ha publicado actualizaciones de software que solucionan esta vulnerabilidad. No existen workarounds que solucionen esta vulnerabilidad."
    }
  ],
  "id": "CVE-2022-20685",
  "lastModified": "2025-06-24T14:47:25.657",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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  "published": "2024-11-15T16:15:21.910",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-xss-NXOxDhRQ"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
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      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj"
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  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
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      ],
      "source": "psirt@cisco.com",
      "type": "Primary"
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          "value": "CWE-190"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
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  ]
}


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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.