cve-2021-1495
Vulnerability from cvelistv5
Published
2021-04-29 17:31
Modified
2024-09-16 16:53
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Summary
Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability
References
ykramarz@cisco.comhttps://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
ykramarz@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-fp-bp-KfDdcQhcVendor Advisory
ykramarz@cisco.comhttps://www.debian.org/security/2023/dsa-5354
Impacted products
CiscoCisco Firepower Threat Defense Software
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:17.563Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20210428 Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-fp-bp-KfDdcQhc"
          },
          {
            "name": "[debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
          },
          {
            "name": "DSA-5354",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2023/dsa-5354"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Firepower Threat Defense Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-04-28T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload."
        }
      ],
      "exploits": [
        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "NA",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-02-19T00:00:00",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20210428 Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-fp-bp-KfDdcQhc"
        },
        {
          "name": "[debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
        },
        {
          "name": "DSA-5354",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2023/dsa-5354"
        }
      ],
      "source": {
        "advisory": "cisco-sa-http-fp-bp-KfDdcQhc",
        "defect": [
          [
            "CSCvw19272",
            "CSCvw59055"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-1495",
    "datePublished": "2021-04-29T17:31:20.004075Z",
    "dateReserved": "2020-11-13T00:00:00",
    "dateUpdated": "2024-09-16T16:53:44.778Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-1495\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2021-04-29T18:15:09.430\",\"lastModified\":\"2023-11-07T03:28:25.833\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.\"},{\"lang\":\"es\",\"value\":\"M\u00faltiples productos de Cisco est\u00e1n afectados por una vulnerabilidad en el motor de detecci\u00f3n Snort que podr\u00eda permitir a un atacante remoto no autenticado omitir una pol\u00edtica de archivos configurada para HTTP.\u0026#xa0;La vulnerabilidad es debido a un manejo incorrecto de par\u00e1metros espec\u00edficos del encabezado HTTP.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de paquetes HTTP dise\u00f1ados por medio de un dispositivo afectado.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante omitir una pol\u00edtica de archivos configurada para paquetes HTTP y entregar una carga \u00fatil maliciosa\"}],\"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:U/C:N/I:L/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.8,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.4.0.12\",\"matchCriteriaId\":\"FAE65CB5-08E5-41B6-9AC0-02451C90E833\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5.0\",\"versionEndExcluding\":\"6.6.4\",\"matchCriteriaId\":\"04202164-FCC4-413E-90B5-01FE08AC6EEC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7.0\",\"versionEndExcluding\":\"6.7.0.2\",\"matchCriteriaId\":\"FDDF492B-BC61-4814-B05F-3F6CD07080F7\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:ios_xe:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"16.12\",\"versionEndExcluding\":\"16.12.5\",\"matchCriteriaId\":\"D3BCB821-CD8E-4D1D-968E-D52715B4CDDE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.9.17.1\",\"matchCriteriaId\":\"3ABE8CC6-FFE8-48D2-B94A-C8AED78AA2D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"17.1\",\"versionEndExcluding\":\"17.3.3\",\"matchCriteriaId\":\"F3A8DECA-0833-4207-9EC7-DFC60A7EF1C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"17.4\",\"versionEndExcluding\":\"17.4.1\",\"matchCriteriaId\":\"3CFEDAF8-A6E8-4F01-B6D5-5099107BF77F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1100-4g\\\\/6g_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A6F668B9-2C1D-4306-8286-35E67D0F67C7\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5EB8A757-7888-4AC2-BE44-B89DB83C6C77\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1109_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B80890A8-E3D3-462C-B125-9E9BC6525B02\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1111x_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0547E196-5991-4C33-823A-342542E9DFD3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:111x_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"802CBFC1-8A2F-4BF7-A1D3-00622C33BE16\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AFE0FC1-EEBC-42F0-88B0-4AF5B76DDD97\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D916389F-54DB-44CB-91DD-7CE3C7059350\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:3000_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B8C4D97-A430-45FB-9EF5-B6E4DBA1BD31\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6C8AED7C-DDA3-4C29-BB95-6518C02C551A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5419CB9F-241F-4431-914F-2659BE27BEA5\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5720462A-BE6B-4E84-A1A1-01E80BBA86AD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E8B60888-6E2B-494E-AC65-83337661EE7D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:c8200-1n-4t:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CCF17101-9EF9-47BB-B966-0FA9B71AEEFA\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:c8200l-1n-4t:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2F0C218-B0FF-4BEC-B76F-1F4BAA6D0960\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_8300-1n1s-4t2x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5E7E8914-7B25-4097-8B22-6928C1F03D5A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_8300-1n1s-6t:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B207857B-C483-47DF-9FC7-6A05B866BF60\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_8300-2n2s-4t2x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD26746A-80D1-4C48-BF77-E9F7EEEF7EA7\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_8300-2n2s-6t:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BDB16CCE-1E89-4707-86C1-97F2FB5B62B9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:catalyst_8500l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"04AB61E9-0148-495E-BD21-64D52DE60A6C\"}]}]}],\"references\":[{\"url\":\"https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-fp-bp-KfDdcQhc\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.debian.org/security/2023/dsa-5354\",\"source\":\"ykramarz@cisco.com\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.