A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.
History

Tue, 26 Nov 2024 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Cisco secure Firewall Management Center
CPEs cpe:2.3:a:cisco:firepower_management_center:2.9.18:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.18:*:*:*:*:*:*:*
Vendors & Products Cisco firepower Management Center
Cisco secure Firewall Management Center

Thu, 07 Nov 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-08-18T19:40:38.750163Z

Updated: 2024-11-07T22:03:41.730Z

Reserved: 2021-06-15T00:00:00

Link: CVE-2021-34749

cve-icon Vulnrichment

Updated: 2024-08-04T00:19:48.253Z

cve-icon NVD

Status : Modified

Published: 2021-08-18T20:15:07.930

Modified: 2024-11-26T16:09:02.407

Link: CVE-2021-34749

cve-icon Redhat

No data.