CVE-2021-40118
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
PublishedOct 27, 2021
First seenOct 27, 2021
Weakness typeCWE-121CWE-121
How to fix
Update
- cisco adaptive_security_appliance9.8.4.40 or later
- cisco secure_firewall_threat_defense6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 or later
- cisco adaptive_security_appliance_software9.12.4.29, 9.14.3.9, 9.15.1.17, 9.16.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco adaptive_security_appliance | v < 9.8.4.40 | 9.8.4.40 |
| cisco secure_firewall_threat_defense | v < 6.4.0.13, 6.5.0 ≤ v < 6.6.5, 6.7.0 ≤ v < 6.7.0.3, 7.0.0 ≤ v < 7.0.1 | 6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 |
| cisco adaptive_security_appliance_software | 9.9.0 ≤ v < 9.12.4.29, 9.13.0 ≤ v < 9.14.3.9, 9.15.0 ≤ v < 9.15.1.17, 9.16.0 ≤ v < 9.16.2.3 | 9.12.4.29, 9.14.3.9, 9.15.1.17, 9.16.2.3 |
| cisco asa_5512-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5505_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5515-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5525-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5545-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5555-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5580_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
| cisco asa_5585-x_firmware | 009.012\(004.024\), 009.015\(001\), 009.015\(001.015\), 009.015\(001.016\), 009.016\(001\) | — |
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