cisco email_security_appliance 证书验证不恰当
CVE编号
CVE-2022-20960利用情况
暂无补丁情况
N/A披露时间
2022-11-05漏洞描述
A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated.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 | email_security_appliance | * | Up to (excluding) 14.2.1-015 | |||||
运行在以下环境 | |||||||||
应用 | cisco | email_security_appliance | * | From (including) 14.3.0 | Up to (excluding) 14.3.0-020 |
- 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-295 | 证书验证不恰当 |
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