CVE编号
CVE-2021-21392利用情况
暂无补丁情况
官方补丁披露时间
2021-04-13漏洞描述
Requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks.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 |
|
|---|---|
| https://github.com/matrix-org/synapse/pull/9240 | |
| https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78 | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://pypi.org/project/matrix-synapse/ |
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 | matrix | synapse | * |
Up to (excluding) 1.28.0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | matrix-synapse | * |
Up to (excluding) 1.38.1-1.fc34 |
|||||
- 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 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 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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