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。
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 - -
CVSS3评分
7.5
  • 攻击路径
    网络
  • 攻击复杂度
  • 权限要求
  • 影响范围
    未更改
  • 用户交互
  • 可用性
  • 保密性
  • 完整性
CWE-ID 漏洞类型
CWE-345 对数据真实性的验证不充分
阿里云安全产品覆盖情况