CVE-2021-1573

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVSS v3 7.5 HIGH
CVSS v2.0 7.1 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asafdt-webvpn-dos-KSqJAKPA	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cisco:adaptive_security_appliance::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense::::::::
	cpe:2.3:a:cisco:firepower_threat_defense:7.0.0:::::::*
	cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::
	cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::
	cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::
	cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::
	cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::

History

No history.

Information

Published : 2022-01-11 19:15

Updated : 2023-08-16 16:18

NVD link : CVE-2021-1573

Mitre link : CVE-2021-1573

CVE.ORG link : CVE-2021-1573

JSON object : View

Products Affected

cisco

firepower_threat_defense
adaptive_security_appliance
adaptive_security_appliance_software

CWE

CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow

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This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en la interfaz de servicios web del software Cisco Adaptive Security Appliance (ASA) y del software Cisco Firepower Threat Defense (FTD) podr\u00eda permitir a un atacante remoto no autenticado desencadenar una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad es debido a una comprobaci\u00f3n inapropiada de entradas cuando son analizadas las peticiones HTTPS. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de una petici\u00f3n HTTPS maliciosa a un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo se recargue, resultando en una condici\u00f3n de DoS"}], "lastModified": "2023-08-16T16:18:07.767", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "713E8185-E75D-4470-9C6A-6021DF154897", "versionEndIncluding": "9.7"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2330600D-6AB1-4912-A595-2AE167853B93", "versionEndIncluding": "6.2.2"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21EE9386-0DCF-4F04-A05D-387B83D668D0", "versionEndExcluding": "6.4.0.13", "versionStartIncluding": "6.2.3"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "18589C74-19D2-44F0-AF26-68910E26655D", "versionEndExcluding": "6.6.5", "versionStartIncluding": "6.5.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98DEDDAB-B8C5-4753-A208-94638E694FC1", "versionEndExcluding": "6.7.0.3", "versionStartIncluding": "6.7.0"}, {"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:7.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBCA75A6-0A3E-4393-8884-9F3CE190641E"}, {"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "371C8F32-C2BB-49E2-A9AB-BEBCDB6709C1", "versionEndExcluding": "9.8.4.40", "versionStartIncluding": "9.8"}, {"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9138F19B-2402-4A19-B37E-2EDAE9EFF8EB", "versionEndExcluding": "9.12.4.26", "versionStartIncluding": "9.9"}, {"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DBA21489-FED1-4FA7-B5DA-41ED129D716B", "versionEndExcluding": "9.14.3", "versionStartIncluding": "9.13"}, {"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE55D049-D331-45CF-B4CB-9519DCC48241", "versionEndExcluding": "9.15.1.17", "versionStartIncluding": "9.15"}, {"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A40C76E7-07C6-4DE4-9B7D-3D9726011AC3", "versionEndExcluding": "9.16.1.28", "versionStartIncluding": "9.16"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}