GSD-2023-20057

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2023-20057",
    "id": "GSD-2023-20057"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
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        "CVE-2023-20057"
      ],
      "details": "A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device.",
      "id": "GSD-2023-20057",
      "modified": "2023-12-13T01:20:27.823810Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2023-20057",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Cisco Email Security Appliance (ESA)",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
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          }
        ]
      },
      "exploit": [
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          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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      "impact": {
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            "attackVector": "NETWORK",
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            "baseScore": 0,
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            "integrityImpact": "NONE",
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            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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            "version": "3.1"
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      "problemtype": {
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          {
            "description": [
              {
                "cweId": "CWE-792",
                "lang": "eng",
                "value": "Incomplete Filtering of One or More Instances of Special Elements"
              }
            ]
          }
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      },
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      "source": {
        "advisory": "cisco-sa-esa-url-bypass-WbMQqNJh",
        "defects": [
          "CSCwb58117"
        ],
        "discovery": "EXTERNAL"
      }
    },
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          }
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        "lastModified": "2024-01-25T17:15:27.963",
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    }
  }
}


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Sightings

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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.
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  • 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.


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