CVE编号
CVE-2021-41991利用情况
暂无补丁情况
没有补丁披露时间
2021-10-18漏洞描述
strongSwan是瑞士Andreas Steffen个人开发者的一套Linux平台使用的开源的基于IPsec的VPN解决方案。该方案包含X.509公开密钥证书、安全储存私钥、智能卡等认证机制。 StrongSwan 中存在输入验证错误漏洞，该漏洞源于产品使用随机数生成器生成缓存条数。攻击者可通过多个请求填充缓存并替换缓存导致服务错误或远程代码执行。以下产品及版本受到影响： StrongSwan版本< 5.9.4
解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://github.com/strongswan/strongswan/releases/tag/5.9.4
参考链接 |
|
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf | |
| https://github.com/strongswan/strongswan/releases/tag/5.9.4 | |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00014.html | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://www.debian.org/security/2021/dsa-4989 | |
| https://www.strongswan.org/blog/2021/10/18/strongswan-vulnerability-(cve-2021... |
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 | strongswan | strongswan | * |
From (including) 4.2.10 |
Up to (excluding) 5.9.4 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | strongswan | * |
Up to (excluding) 5.8.4-r3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | strongswan | * |
Up to (excluding) 5.9.1-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | strongswan | * |
Up to (excluding) 5.9.1-r2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | strongswan | * |
Up to (excluding) 5.9.1-r3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | strongswan | * |
Up to (excluding) 5.9.1-r3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | strongswan | * |
Up to (excluding) 5.7.2-1+deb10u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | strongswan | * |
Up to (excluding) 5.9.1-1+deb11u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | strongswan | * |
Up to (excluding) 5.5.1-4+deb9u5 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | strongswan | * |
Up to (excluding) 5.9.4-1.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | strongswan | * |
Up to (excluding) 5.9.4-1.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | strongswan | * |
Up to (excluding) 5.9.4-1.fc35 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_36 | strongswan | * |
Up to (excluding) 5.9.4-1.fc36 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | strongswan | * |
Up to (excluding) 5.9.4-1.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | strongswan | * |
Up to (excluding) 5.8.2-lp152.2.18.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | strongswan | * |
Up to (excluding) 5.8.2-11.21.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | strongswan | * |
Up to (excluding) 5.1.3-26.16.1 |
|||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 没有补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
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