CVE-2021-1223

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 an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2	Vendor Advisory
https://www.debian.org/security/2023/dsa-5354
https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2	Vendor Advisory
https://www.debian.org/security/2023/dsa-5354

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:::::::*
	cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:::::::*
	cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:::::::*

Configuration 2 (hide)

AND

cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4221_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4321_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4331_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4351_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4431_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4451-x_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:4461_integrated_services_router:-:::::::*
	cpe:2.3:h:cisco:csr_1000v:-:::::::*
	cpe:2.3:h:cisco:isa_3000:-:::::::*

Configuration 3 (hide)

cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*

History

26 Nov 2024, 16:09

Type	Values Removed	Values Added
CPE	cpe:2.3:a:cisco:firepower_management_center:2.9.16:::::::* cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:::::::* cpe:2.3:a:cisco:firepower_management_center:2.9.15:::::::*	cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:::::::* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:::::::* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:::::::*
First Time		Cisco secure Firewall Management Center

21 Nov 2024, 05:43

Type	Values Removed	Values Added
References	~~() https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html -~~	() https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html -
References	~~() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2 - Vendor Advisory~~	() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2 - Vendor Advisory
References	~~() https://www.debian.org/security/2023/dsa-5354 -~~	() https://www.debian.org/security/2023/dsa-5354 -

Information

Published : 2021-01-13 22:15

Updated : 2024-11-26 16:09

NVD link : CVE-2021-1223

Mitre link : CVE-2021-1223

CVE.ORG link : CVE-2021-1223

JSON object : View

Products Affected

cisco

csr_1000v
1109-2p_integrated_services_router
1100-8p_integrated_services_router
4431_integrated_services_router
isa_3000
4331_integrated_services_router
4221_integrated_services_router
4451-x_integrated_services_router
ios_xe
secure_firewall_management_center
firepower_threat_defense
1111x-8p_integrated_services_router
1100-4p_integrated_services_router
1109-4p_integrated_services_router
4351_integrated_services_router
4321_integrated_services_router
1101-4p_integrated_services_router
4461_integrated_services_router

snort

snort

CWE

CWE-693

Protection Mechanism Failure

NVD-CWE-Other

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The vulnerability is due to incorrect handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass 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 de Snort que podr\u00eda permitir a un atacante remoto no autenticado omita una pol\u00edtica de archivos configurada para HTTP. La vulnerabilidad es debido al manejo incorrecto de un encabezado de rango HTTP. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de paquetes HTTP dise\u00f1ados a trav\u00e9s de un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante omitir la pol\u00edtica de archivos configurada para paquetes HTTP y entregar una carga \u00fatil maliciosa."}], "lastModified": "2024-11-26T16:09:02.407", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CB1B5DAC-CE54-43E4-89F6-6DFD7A65C8EA", "versionEndExcluding": "6.7.0"}, {"criteria": "cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2986D5BD-1936-41BD-A992-7672C019F27E"}, {"criteria": "cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "42493B4F-0CF2-45F0-B72D-36F0597CC274"}, {"criteria": "cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06F2E7D8-BB95-480D-AE3E-F9B97C3A5379"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "72B91784-38A9-4A2A-AA92-8AB558924BBD", "versionEndExcluding": "17.4.1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2D2305B-B69E-4F74-A44E-07B3205CE9F7"}, {"criteria": "cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "26DD41B3-1D1D-44D3-BA8E-5A66AFEE77E6"}, {"criteria": "cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5AAD4397-6DCF-493A-BD61-3A890F6F3AB2"}, {"criteria": "cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3F2F0A8E-97F6-41AC-BE67-4B2D60F9D36B"}, {"criteria": "cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BB9229F3-7BCE-46C4-9879-D57B5BAAE44E"}, {"criteria": "cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A5A606FE-E6F1-43F9-B1CD-D9DF35FC3573"}, {"criteria": "cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6C8AED7C-DDA3-4C29-BB95-6518C02C551A"}, {"criteria": "cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9421DBEF-AE42-4234-B49F-FCC34B804D7F"}, {"criteria": "cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5419CB9F-241F-4431-914F-2659BE27BEA5"}, {"criteria": "cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7DE02DBE-EAD5-4F37-8AB7-DF46A605A0E2"}, {"criteria": "cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5720462A-BE6B-4E84-A1A1-01E80BBA86AD"}, {"criteria": "cpe:2.3:h:cisco:4451-x_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "818CEFA6-208C-43C3-8E43-474A93ADCF21"}, {"criteria": "cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E8B60888-6E2B-494E-AC65-83337661EE7D"}, {"criteria": "cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BF8B0B49-2C99-410B-B011-5B821C5992FB"}, {"criteria": "cpe:2.3:h:cisco:isa_3000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9510E97A-FD78-43C6-85BC-223001ACA264"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "715F9721-D26C-4086-873F-837D0FCAF1A5", "versionEndExcluding": "2.9.17"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}

7.5 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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