cvelistv5 - CVE-2021-1224

URL	Tags
ykramarz@cisco.com	https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
ykramarz@cisco.com	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-tfo-bypass-MmzZrtes	Vendor Advisory
ykramarz@cisco.com	https://www.debian.org/security/2023/dsa-5354

▼	Vendor	Product
	Cisco	Cisco Firepower Threat Defense Software

gsd-2021-1224

Vulnerability from gsd

Modified

2023-12-13 01:23

Details

Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

Aliases

CVE-2021-1224

Aliases

CVE-2021-1224

JSON

To clipboard

{
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    "alias": "CVE-2021-1224",
    "description": "Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.",
    "id": "GSD-2021-1224",
    "references": [
      "https://www.debian.org/security/2023/dsa-5354"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
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        "CVE-2021-1224"
      ],
      "details": "Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.",
      "id": "GSD-2021-1224",
      "modified": "2023-12-13T01:23:22.064881Z",
      "schema_version": "1.4.0"
    }
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        "STATE": "PUBLIC",
        "TITLE": "Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability"
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          "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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            "accessVector": "NETWORK",
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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      "lastModifiedDate": "2023-05-22T18:57Z",
      "publishedDate": "2021-01-13T22:15Z"
    }
  }
}

cisco-sa-snort-tfo-bypass-mmzzrtes

Vulnerability from csaf_cisco

Published

2021-01-13 16:00

Modified

2021-05-20 13:27

Summary

Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability

Notes

Summary

Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

Vulnerable Products

At the time of publication, this vulnerability affected the following Cisco products if they were running releases earlier than the first fixed release of Cisco software: 3000 Series Industrial Security Appliances (ISAs) Firepower Threat Defense (FTD) Software Meraki MX64 Meraki MX64W Meraki MX67 Meraki MX67C Meraki MX67W Meraki MX68 Meraki MX68CW Meraki MX68W Meraki MX84 Meraki MX100 Meraki MX250 Meraki MX450 At the time of publication, this vulnerability affected the following Cisco products if they were running releases earlier than the first fixed release of Cisco UTD Snort IPS Engine Software for IOS XE or Cisco UTD Engine for IOS XE SD-WAN Software: 1000 Series Integrated Services Routers (ISRs) 4000 Series ISRs Catalyst 8000V Edge Software Catalyst 8200 Series Edge Platforms Catalyst 8300 Series Edge Platforms Catalyst 8500L Edge Platforms Cloud Services Router 1000V (CSR 1000V) Integrated Services Virtual Router (ISRv) For information about which Cisco software releases are vulnerable, see the Fixed Software ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort_filepolbypass-m4X5DgOP#fs"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. At the time of publication, this vulnerability also affected all open source Snort project releases earlier than Release 2.9.17. For more information about open source Snort project releases, see the Snort website ["https://www.snort.org/"].

Products Confirmed Not Vulnerable

Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco products: Adaptive Security Appliance (ASA) Software Catalyst 8500 Edge Platforms Firepower Management Center (FMC) Software Meraki vMX100 Virtual Appliances Meraki Z1 Appliances Meraki Z3 Series Appliances

Workarounds

While this workaround has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment. Cisco FTD Software Release 6.7.0 For Cisco FTD Software Release 6.7.0, as a workaround when the Snort 3 configuration option is enabled, an administrator may enable built-in rule 129:2 in the intrusion policy and set the action to Drop instead of Alert. Use the following steps to verify that the Snort 3 configuration option is enabled. For more details, see the Switching Between Snort 2 and Snort 3 ["https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#id_120089"] section of the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.7. Log in to the Admin Portal for the FTD deployment. Navigate to Policies > Intrusion. Look for the Snort Version line above the table. The current version is the first number in the complete version number. For example, 2.9.17-95 is a Snort 2 version. Use the following steps to enable rule 129:2. For more details, see the Changing Intrusion Rule Actions (Snort 3) ["https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#Cisco_Task_in_List_GUI.dita_54aef253-02ab-4044-88ea-cea05249686d"] section of the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.7. Log in to the Admin Portal for the FTD deployment. Navigate to Policies > Intrusion. Choose any system-provided policy, such as Balanced Security and Connectivity. Search for rule 129:2. Check the check box next to the rule to enable it. Choose Drop from the Action drop-down list. Add the intrusion policy to a rule in Access control policy.

Fixed Software

When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Fixed Releases At the time of publication, the following fixed release information was available for the products that were affected by this vulnerability. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. For more information about open source Snort project releases, see the Snort website ["https://www.snort.org/"]. Cisco FTD releases 6.4.0.12, 6.6.3, and 6.7.0 and later contained the fix for this vulnerability when the Snort 2 option is configured. Cisco FTD releases 6.7.0 and later were not vulnerable when the Snort 3 option is configured and rule 129:2 is enabled to drop traffic. Cisco UTD Snort IPS Engine Software for IOS XE 16.12.5, 17.3.3, and 17.4.11 contained the fix for this vulnerability. Cisco had not released software updates that address this vulnerability for Meraki MX Series Security Appliances. The open source Snort project releases 2.9.17 and later contained the fix for this vulnerability. The open source Snort project releases 3.0 and later were not vulnerable when rule 129:2 is enabled to drop traffic. 1. Starting in 17.2.1, Cisco IOS XE and IOS XE SD-WAN use the same image file.

Vulnerability Policy

To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.

Exploitation and Public Announcements

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.

Source

Cisco would like to thank Guillermo Muñoz Mozos of BBVA for reporting this vulnerability.

Legal Disclaimer

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.

JSON

To clipboard

{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Guillermo Mu\u00f1oz Mozos of BBVA for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP.\r\n\r\nThe vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.\r\n\r\nCisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "At the time of publication, this vulnerability affected the following Cisco products if they were running releases earlier than the first fixed release of Cisco software:\r\n\r\n3000 Series Industrial Security Appliances (ISAs)\r\nFirepower Threat Defense (FTD) Software\r\nMeraki MX64\r\nMeraki MX64W\r\nMeraki MX67\r\nMeraki MX67C\r\nMeraki MX67W\r\nMeraki MX68\r\nMeraki MX68CW\r\nMeraki MX68W\r\nMeraki MX84\r\nMeraki MX100\r\nMeraki MX250\r\nMeraki MX450\r\n\r\nAt the time of publication, this vulnerability affected the following Cisco products if they were running releases earlier than the first fixed release of Cisco UTD Snort IPS Engine Software for IOS XE or Cisco UTD Engine for IOS XE SD-WAN Software:\r\n\r\n1000 Series Integrated Services Routers (ISRs)\r\n4000 Series ISRs\r\nCatalyst 8000V Edge Software\r\nCatalyst 8200 Series Edge Platforms\r\nCatalyst 8300 Series Edge Platforms\r\nCatalyst 8500L Edge Platforms\r\nCloud Services Router 1000V (CSR 1000V)\r\nIntegrated Services Virtual Router (ISRv)\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort_filepolbypass-m4X5DgOP#fs\"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\nAt the time of publication, this vulnerability also affected all open source Snort project releases earlier than Release 2.9.17. For more information about open source Snort project releases, see the Snort website [\"https://www.snort.org/\"].",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nAdaptive Security Appliance (ASA) Software\r\nCatalyst 8500 Edge Platforms\r\nFirepower Management Center (FMC) Software\r\nMeraki vMX100 Virtual Appliances\r\nMeraki Z1 Appliances\r\nMeraki Z3 Series Appliances",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "While this workaround has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.\r\n  Cisco FTD Software Release 6.7.0\r\nFor Cisco FTD Software Release 6.7.0, as a workaround when the Snort 3 configuration option is enabled, an administrator may enable built-in rule 129:2 in the intrusion policy and set the action to Drop instead of Alert.\r\n\r\nUse the following steps to verify that the Snort 3 configuration option is enabled. For more details, see the Switching Between Snort 2 and Snort 3 [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#id_120089\"] section of the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.7.\r\n\r\nLog in to the Admin Portal for the FTD deployment.\r\nNavigate to Policies \u003e Intrusion.\r\nLook for the Snort Version line above the table. The current version is the first number in the complete version number. For example, 2.9.17-95 is a Snort 2 version.\r\n\r\nUse the following steps to enable rule 129:2. For more details, see the Changing Intrusion Rule Actions (Snort 3) [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#Cisco_Task_in_List_GUI.dita_54aef253-02ab-4044-88ea-cea05249686d\"] section of the Cisco Firepower Threat Defense Configuration Guide for Firepower Device Manager, Version 6.7.\r\n\r\nLog in to the Admin Portal for the FTD deployment.\r\nNavigate to Policies \u003e Intrusion.\r\nChoose any system-provided policy, such as Balanced Security and Connectivity.\r\nSearch for rule 129:2.\r\nCheck the check box next to the rule to enable it.\r\nChoose Drop from the Action drop-down list.\r\nAdd the intrusion policy to a rule in Access control policy.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "When considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n      Fixed Releases\r\nAt the time of publication, the following fixed release information was available for the products that were affected by this vulnerability. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. For more information about open source Snort project releases, see the Snort website [\"https://www.snort.org/\"].\r\n\r\nCisco FTD releases 6.4.0.12, 6.6.3, and 6.7.0 and later contained the fix for this vulnerability when the Snort 2 option is configured.\r\nCisco FTD releases 6.7.0 and later were not vulnerable when the Snort 3 option is configured and rule 129:2 is enabled to drop traffic.\r\nCisco UTD Snort IPS Engine Software for IOS XE 16.12.5, 17.3.3, and 17.4.11 contained the fix for this vulnerability.\r\nCisco had not released software updates that address this vulnerability for Meraki MX Series Security Appliances.\r\nThe open source Snort project releases 2.9.17 and later contained the fix for this vulnerability.\r\nThe open source Snort project releases 3.0 and later were not vulnerable when rule 129:2 is enabled to drop traffic.\r\n\r\n1. Starting in 17.2.1, Cisco IOS XE and IOS XE SD-WAN use the same image file.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "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.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Guillermo Mu\u00f1oz Mozos of BBVA for reporting this vulnerability.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-tfo-bypass-MmzZrtes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "Fixed Software",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort_filepolbypass-m4X5DgOP#fs"
      },
      {
        "category": "external",
        "summary": "Snort website",
        "url": "https://www.snort.org/"
      },
      {
        "category": "external",
        "summary": "Switching Between Snort 2 and Snort 3",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#id_120089"
      },
      {
        "category": "external",
        "summary": "Changing Intrusion Rule Actions (Snort 3)",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/670/fdm/fptd-fdm-config-guide-670/fptd-fdm-intrusion.html#Cisco_Task_in_List_GUI.dita_54aef253-02ab-4044-88ea-cea05249686d"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      }
    ],
    "title": "Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2021-05-20T13:27:19+00:00",
      "generator": {
        "date": "2024-05-10T22:57:48+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-snort-tfo-bypass-MmzZrtes",
      "initial_release_date": "2021-01-13T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2021-01-11T17:52:35+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2021-03-30T14:15:12+00:00",
          "number": "1.1.0",
          "summary": "Added FTD and Snort\u0026nbsp;3 information. Added Catalyst products. Added Cisco FTD Release 6.7.0 workaround."
        },
        {
          "date": "2021-05-20T13:27:19+00:00",
          "number": "1.2.0",
          "summary": "Updated fixed release information for FTD."
        }
      ],
      "status": "final",
      "version": "1.2.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "6.4.0.8",
                    "product": {
                      "name": "6.4.0.8",
                      "product_id": "CSAFPID-276935"
                    }
                  }
                ],
                "category": "product_version",
                "name": "6.4"
              }
            ],
            "category": "product_family",
            "name": "Cisco Firepower Threat Defense Software"
          },
          {
            "category": "product_family",
            "name": "Cisco UTD SNORT IPS Engine Software",
            "product": {
              "name": "Cisco UTD SNORT IPS Engine Software ",
              "product_id": "CSAFPID-279755"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Firepower 2100 Series",
            "product": {
              "name": "Cisco Firepower 2100 Series",
              "product_id": "CSAFPID-277392"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.4.0.8 when installed on Cisco Firepower 2100 Series",
          "product_id": "CSAFPID-276935:277392"
        },
        "product_reference": "CSAFPID-276935",
        "relates_to_product_reference": "CSAFPID-277392"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-1224",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvt43136"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvu88532"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-276935:277392",
          "CSAFPID-279755"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-276935:277392",
            "CSAFPID-279755"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-276935:277392",
            "CSAFPID-279755"
          ]
        }
      ],
      "title": "Multiple Cisco Products SNORT Tcp Fast Open File Policy Bypass Vulnerability"
    }
  ]
}

wid-sec-w-2023-0339

Vulnerability from csaf_certbund

Published

2021-01-13 23:00

Modified

2023-02-19 23:00

Summary

Snort: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Snort ist ein freies Network Intrusion Prevention System (NIPS) und ein Network Intrusion Detection System (NIDS) der Firma Sourcefire. Router sind Geräte aus dem Bereich Computernetzwerke, Telekommunikation und Internet, die mehrere Rechnernetze miteinander verbinden. Firepower ist eine Firewall-Plattform von Cisco

Angriff

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Snort und verschiedenen Cisco Produkten ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme

- CISCO Appliance

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Snort ist ein freies Network Intrusion Prevention System (NIPS) und ein Network Intrusion Detection System (NIDS) der Firma Sourcefire.\r\nRouter sind Ger\u00e4te aus dem Bereich Computernetzwerke, Telekommunikation und Internet, die mehrere Rechnernetze miteinander verbinden.\r\nFirepower ist eine Firewall-Plattform von Cisco",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Snort und verschiedenen Cisco Produkten ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-0339 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-0339.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0339 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0339"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-5354 vom 2023-02-19",
        "url": "https://www.debian.org/security/2023/dsa-5354"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3317 vom 2023-02-11",
        "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2021-01-13",
        "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-app-bypass-cSBYCATq"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2021-01-13",
        "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2021-01-13",
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}

var-202101-0782

Vulnerability from variot

Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload. plural Cisco The product contains a privilege management vulnerability.Information may be tampered with. Cisco 3000 Series Industrial Security Appliances, etc. are all products of Cisco (Cisco). Cisco 3000 Series Industrial Security Appliances are 3000 Series Industrial Security Appliances. Cisco 4000 Series Integrated Services Routers (ISRS) are 4000 Series enterprise-class multiservice routers. Cisco Cloud Services Router 1000V Series is a 1000v series cloud service routing software. A security vulnerability exists in several Cisco products. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512

Debian Security Advisory DSA-5354-1 security@debian.org https://www.debian.org/security/ Markus Koschany February 18, 2023 https://www.debian.org/security/faq

Package : snort CVE ID : CVE-2020-3299 CVE-2020-3315 CVE-2021-1223 CVE-2021-1224 CVE-2021-1236 CVE-2021-1494 CVE-2021-1495 CVE-2021-34749 CVE-2021-40114 Debian Bug : 1021276

Multiple security vulnerabilities were discovered in snort, a flexible Network Intrusion Detection System, which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or bypass filtering technology on an affected device and ex-filtrate data from a compromised host.

For the stable distribution (bullseye), these problems have been fixed in version 2.9.20-0+deb11u1.

We recommend that you upgrade your snort packages.

For the detailed security status of snort please refer to its security tracker page at: https://security-tracker.debian.org/tracker/snort

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----

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    "data": "Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload. plural Cisco The product contains a privilege management vulnerability.Information may be tampered with. Cisco 3000 Series Industrial Security Appliances, etc. are all products of Cisco (Cisco). Cisco 3000 Series Industrial Security Appliances are 3000 Series Industrial Security Appliances. Cisco 4000 Series Integrated Services Routers (ISRS) are 4000 Series enterprise-class multiservice routers. Cisco Cloud Services Router 1000V Series is a 1000v series cloud service routing software. A security vulnerability exists in several Cisco products. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5354-1                   security@debian.org\nhttps://www.debian.org/security/                          Markus Koschany\nFebruary 18, 2023                     https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage        : snort\nCVE ID         : CVE-2020-3299 CVE-2020-3315 CVE-2021-1223 CVE-2021-1224\n                 CVE-2021-1236 CVE-2021-1494 CVE-2021-1495 CVE-2021-34749\n                 CVE-2021-40114\nDebian Bug     : 1021276\n\nMultiple security vulnerabilities were discovered in snort, a flexible Network\nIntrusion Detection System, which could allow an unauthenticated, remote\nattacker to cause a denial of service (DoS) condition or bypass filtering\ntechnology on an affected device and ex-filtrate data from a compromised host. \n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 2.9.20-0+deb11u1. \n\nWe recommend that you upgrade your snort packages. \n\nFor the detailed security status of snort please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/snort\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\ncyzVbz9Q+fC+gXwDusZccBqfD7rByEFWXflBFI4PDXRrW+NPy8w\\xdb5k\n-----END PGP SIGNATURE-----\n",
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ghsa-p854-c355-26cj

Vulnerability from github

Published

2022-05-24 17:39

Modified

2022-08-06 00:00

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Details

Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-1224"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-693"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-13T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with 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 detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.",
  "id": "GHSA-p854-c355-26cj",
  "modified": "2022-08-06T00:00:37Z",
  "published": "2022-05-24T17:39:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1224"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-tfo-bypass-MmzZrtes"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5354"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-1224

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature

Action not permitted

CVE-2021-1224

Vulnerability from cvelistv5

gsd-2021-1224

Vulnerability from gsd

cisco-sa-snort-tfo-bypass-mmzzrtes

Vulnerability from csaf_cisco

wid-sec-w-2023-0339

Vulnerability from csaf_certbund

var-202101-0782

Vulnerability from variot

ghsa-p854-c355-26cj

Vulnerability from github

Tags

Sightings

Nomenclature