cisco adaptive_security_appliance 对数据真实性的验证不充分
CVE编号
CVE-2022-20795利用情况
暂无补丁情况
N/A披露时间
2022-04-22漏洞描述
A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processing that occurs when establishing a DTLS tunnel as part of an AnyConnect SSL VPN connection. An attacker could exploit this vulnerability by sending a steady stream of crafted DTLS traffic to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected VPN headend device. This could cause existing DTLS tunnels to stop passing traffic and prevent new DTLS tunnels from establishing, resulting in a DoS condition. Note: When the attack traffic stops, the device recovers gracefully.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
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|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s... |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | cisco | adaptive_security_appliance | * | Up to (including) 9.16.3 | |||||
| 运行在以下环境 | |||||||||
| 应用 | cisco | adaptive_security_appliance | * | From (including) 9.17.0 | Up to (including) 9.17.1.9 | ||||
| 运行在以下环境 | |||||||||
| 应用 | cisco | firepower_threat_defense | * | Up to (including) 7.0.1 | |||||
| 运行在以下环境 | |||||||||
| 应用 | cisco | firepower_threat_defense | * | From (including) 7.1.0.0 | Up to (including) 7.1.0.1 | ||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5505 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5512-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5515-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5525-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5545-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5555-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5580 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_5585-x | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asa_for_nexus_1000v | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_1010 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_1120 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_1140 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_1150 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_2110 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_2120 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_2130 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_2140 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4110 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4112 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4115 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4120 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4125 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4140 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4145 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_4150 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | firepower_9300 | - | - | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 无
| CWE-ID | 漏洞类型 |
| CWE-345 | 对数据真实性的验证不充分 |
Exp相关链接
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