Rewterz Threat Alert – GADOLINIUM Using Cloud Services and Open Source Tools
September 25, 2020Rewterz Threat Advisory – Cisco IOS XE Software Privilege Escalation Vulnerabilities
September 25, 2020Rewterz Threat Alert – GADOLINIUM Using Cloud Services and Open Source Tools
September 25, 2020Rewterz Threat Advisory – Cisco IOS XE Software Privilege Escalation Vulnerabilities
September 25, 2020Severity
High
Analysis Summary
CVE-2020-3421, CVE-2020-3480
Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall.
The vulnerabilities are due to incomplete handling of Layer 4 packets through the device. An attacker could exploit these vulnerabilities by sending a certain sequence of traffic patterns through the device. A successful exploit could allow the attacker to cause the device to reload or stop forwarding traffic through the firewall, resulting in a denial of service.
Impact
Denial of service
Affected Vendors
Cisco
Remediation
Refer to Cisco advisory for the complete list of affected products and respective patches.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-zbfw-94ckG4G