A vulnerability in the ingress packet processing path of Cisco Firepower Threat Defense (FTD) Software for interfaces that are configured either as Inline Pair or in Passive mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation when Ethernet frames are processed. An attacker could exploit this vulnerability by sending malicious Ethernet frames through an affected device. A successful exploit could allow the attacker do either of the following: Fill the /ngfw partition on the device: A full /ngfw partition could result in administrators being unable to log in to the device (including logging in through the console port) or the device being unable to boot up correctly. Note: Manual intervention is required to recover from this situation. Customers are advised to contact the Cisco Technical Assistance Center (TAC) to help recover a device in this condition. Cause a process crash: The process crash would cause the device to reload. No manual intervention is necessary to recover the device after the reload.
References
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:31
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References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-inline-dos-nXqUyEqM - Vendor Advisory |
Information
Published : 2020-10-21 19:15
Updated : 2024-11-21 05:31
NVD link : CVE-2020-3577
Mitre link : CVE-2020-3577
CVE.ORG link : CVE-2020-3577
JSON object : View
Products Affected
cisco
- firepower_threat_defense
CWE
CWE-20
Improper Input Validation