CVE-2020-3562

A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. No manual intervention is needed to recover the device after it has reloaded.

CVSS v3 8.6 HIGH
CVSS v2.0 7.1 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

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-ftd-ssl-dcrpt-dos-RYEkX4yy	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:cisco:firepower_threat_defense:6.3.0:::::::*
	cpe:2.3:a:cisco:firepower_threat_defense:6.4.0:::::::*
	cpe:2.3:a:cisco:firepower_threat_defense:6.5.0:::::::*

OR	cpe:2.3:h:cisco:firepower_2110:-:::::::*
	cpe:2.3:h:cisco:firepower_2120:-:::::::*
	cpe:2.3:h:cisco:firepower_2130:-:::::::*
	cpe:2.3:h:cisco:firepower_2140:-:::::::*

History

No history.

Information

Published : 2020-10-21 19:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-3562

Mitre link : CVE-2020-3562

CVE.ORG link : CVE-2020-3562

JSON object : View

Products Affected

cisco

firepower_2110
firepower_threat_defense
firepower_2140
firepower_2120
firepower_2130

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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