{
  "GSD": {
    "alias": "CVE-2019-1831",
    "description": "A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by inserting specific character strings in the message. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.",
    "id": "GSD-2019-1831"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-1831"
      ],
      "details": "A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by inserting specific character strings in the message. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.",
      "id": "GSD-2019-1831",
      "modified": "2023-12-13T01:23:52.083482Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "psirt@cisco.com",
        "DATE_PUBLIC": "2019-04-17T16:00:00-0700",
        "ID": "CVE-2019-1831",
        "STATE": "PUBLIC",
        "TITLE": "Cisco Email Security Appliance Content Filter Bypass Vulnerability"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
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                    "product_name": "Cisco Email Security Appliance (ESA) ",
                    "version": {
                      "version_data": [
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                          "version_value": "11.1.2-023"
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            "value": "A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by inserting specific character strings in the message. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email."
          }
        ]
      },
      "exploit": [
        {
          "lang": "eng",
          "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": {
        "cvss": {
          "baseScore": "5.8",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N ",
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        "reference_data": [
          {
            "name": "20190417 Cisco Email Security Appliance Content Filter Bypass Vulnerability",
            "refsource": "CISCO",
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-esa-filter-bypass"
          },
          {
            "name": "108021",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/108021"
          }
        ]
      },
      "source": {
        "advisory": "cisco-sa-20190417-esa-filter-bypass",
        "defect": [
          [
            "CSCvo01349",
            "CSCvo78686"
          ]
        ],
        "discovery": "INTERNAL"
      }
    },
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          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:cisco:email_security_appliance:11.1.2-023:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:cisco:email_security_appliance:12.0.0-208:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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        "description": {
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              "value": "A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by inserting specific character strings in the message. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email."
            }
          ]
        },
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        "references": {
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            {
              "name": "20190417 Cisco Email Security Appliance Content Filter Bypass Vulnerability",
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              "tags": [
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              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-esa-filter-bypass"
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              "url": "http://www.securityfocus.com/bid/108021"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
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          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2019-10-09T23:48Z",
      "publishedDate": "2019-04-18T02:29Z"
    }
  }
}