FKIE_CVE-2025-20183

Vulnerability from fkie_nvd - Published: 2025-02-05 17:15 - Updated: 2025-08-05 19:28
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
A vulnerability in a policy-based Cisco Application Visibility and Control (AVC) implementation of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to evade the antivirus scanner and download a malicious file onto an endpoint.  The vulnerability is due to improper handling of a crafted range request header. An attacker could exploit this vulnerability by sending an HTTP request with a crafted range request header through the affected device. A successful exploit could allow the attacker to evade the antivirus scanner and download malware onto the endpoint without detection by Cisco Secure Web Appliance.
References
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-swa-range-bypass-2BsEHYSuVendor Advisory
Impacted products
Vendor Product Version
cisco asyncos 11.8.0-414
cisco asyncos 11.8.0-429
cisco asyncos 11.8.0-453
cisco asyncos 11.8.1-023
cisco asyncos 11.8.3-018
cisco asyncos 11.8.3-021
cisco asyncos 11.8.4-004
cisco asyncos 12.0.1-268
cisco asyncos 12.0.1-334
cisco asyncos 12.0.2-004
cisco asyncos 12.0.2-012
cisco asyncos 12.0.3-005
cisco asyncos 12.0.3-007
cisco asyncos 12.0.4-002
cisco asyncos 12.0.5-011
cisco asyncos 12.5.1-011
cisco asyncos 12.5.1-043
cisco asyncos 12.5.2-007
cisco asyncos 12.5.2-011
cisco asyncos 12.5.3-002
cisco asyncos 12.5.4-005
cisco asyncos 12.5.4-011
cisco asyncos 12.5.5-004
cisco asyncos 12.5.5-005
cisco asyncos 12.5.5-008
cisco asyncos 12.5.6-008
cisco asyncos 14.0.1-014
cisco asyncos 14.0.1-040
cisco asyncos 14.0.1-053
cisco asyncos 14.0.1-503
cisco asyncos 14.0.2-012
cisco asyncos 14.0.3-014
cisco asyncos 14.0.4-005
cisco asyncos 14.0.5-007
cisco asyncos 14.1.0-032
cisco asyncos 14.1.0-041
cisco asyncos 14.1.0-047
cisco asyncos 14.5.0-498
cisco asyncos 14.5.0-537
cisco asyncos 14.5.0-673
cisco asyncos 14.5.1-008
cisco asyncos 14.5.1-016
cisco asyncos 14.5.1-510
cisco asyncos 14.5.1-607
cisco asyncos 14.5.2-011
cisco asyncos 14.5.3-033
cisco asyncos 15.0.0-322
cisco asyncos 15.0.0-355
cisco asyncos 15.1.0-287
cisco asyncos 15.2.0-116
cisco asyncos 15.2.0-164
cisco secure_web_appliance_virtual_s1000v -
cisco secure_web_appliance_virtual_s100v -
cisco secure_web_appliance_virtual_s300v -
cisco secure_web_appliance_virtual_s600v -
cisco secure_web_appliance_s196 -
cisco secure_web_appliance_s396 -
cisco secure_web_appliance_s696 -
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in a policy-based Cisco Application Visibility and Control (AVC) implementation of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to evade the antivirus scanner and download a malicious file onto an endpoint.\u0026nbsp;\r\n\r\nThe vulnerability is due to improper handling of a crafted range request header. An attacker could exploit this vulnerability by sending an HTTP request with a crafted range request header through the affected device. A successful exploit could allow the attacker to evade the antivirus scanner and download malware onto the endpoint without detection by Cisco Secure Web Appliance."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en una implementaci\u00f3n basada en pol\u00edticas de Cisco Application Visibility and Control (AVC) de Cisco AsyncOS Software para Cisco Secure Web Appliance podr\u00eda permitir que un atacante remoto no autenticado eluda el esc\u00e1ner antivirus y descargue un archivo malicioso en un endpoint. La vulnerabilidad se debe a una gesti\u00f3n inadecuada de un encabezado de solicitud de rango manipulado. Un atacante podr\u00eda explotar esta vulnerabilidad enviando una solicitud HTTP con un encabezado de solicitud de rango manipulado a trav\u00e9s del dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir que el atacante eluda el esc\u00e1ner antivirus y descargue malware en el endpoint sin que Cisco Secure Web Appliance lo detecte."
    }
  ],
  "id": "CVE-2025-20183",
  "lastModified": "2025-08-05T19:28:30.367",
  "metrics": {
    "cvssMetricV31": [
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          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
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          "confidentialityImpact": "NONE",
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  "published": "2025-02-05T17:15:25.527",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-swa-range-bypass-2BsEHYSu"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-20"
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          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.