Cisco Products Snort3 Rule denial of service

CVE编号

CVE-2021-40116

利用情况

暂无

补丁情况

N/A

披露时间

2021-10-28
漏洞描述
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.
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 firepower_management_center 3.1.0.1 -
运行在以下环境
应用 cisco firepower_threat_defense * From
(including)
6.4.0
Up to
(excluding)
6.4.0.13
运行在以下环境
应用 cisco firepower_threat_defense * From
(including)
6.6.0
Up to
(excluding)
6.6.5.1
运行在以下环境
应用 cisco firepower_threat_defense * From
(including)
6.7.0
Up to
(excluding)
6.7.0.3
运行在以下环境
应用 cisco firepower_threat_defense * From
(including)
7.0.0
Up to
(excluding)
7.0.1
运行在以下环境
应用 snort snort * From
(including)
3.0.0.0
Up to
(excluding)
3.1.0.100
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
NVD-CWE-noinfo
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