CVE-2021-34704
High
Description
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.
SeverityHigh
CVSS8.6
Exploit probability—
Product
Cisco Adaptive Security Appliance Software
PublishedJan 11, 2022
First seenJan 11, 2022
Weakness typeCWE-121CWE-121CWE-787Out-of-bounds write
How to fix
Update
- cisco adaptive_security_appliance_software9.15.1.17, 9.16.2 or later
- cisco secure_firewall_threat_defense6.7.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco adaptive_security_appliance_software | 9.15 ≤ v < 9.15.1.17, 9.16 ≤ v < 9.16.2 | 9.15.1.17, 9.16.2 |
| cisco secure_firewall_threat_defense | 6.7.0 ≤ v < 6.7.0.3, 7.0.0 | 6.7.0.3 |
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