低危 matrix synapse 输出中的特殊元素转义处理不恰当(注入)
CVE编号
CVE-2021-21333利用情况
暂无补丁情况
官方补丁披露时间
2021-03-27漏洞描述
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the notification emails sent for notifications for missed messages or for an expiring account are subject to HTML injection. In the case of the notification for missed messages, this could allow an attacker to insert forged content into the email. The account expiry feature is not enabled by default and the HTML injection is not controllable by an attacker. This is fixed in version 1.27.0.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 | matrix | synapse | * | Up to (excluding) 1.27.0 | |||||
运行在以下环境 | |||||||||
系统 | debian_12 | matrix-synapse | * | Up to (excluding) 1.27.0-1 | |||||
运行在以下环境 | |||||||||
系统 | debian_sid | matrix-synapse | * | Up to (excluding) 1.27.0-1 | |||||
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
CWE-ID | 漏洞类型 |
CWE-74 | 输出中的特殊元素转义处理不恰当(注入) |
CWE-79 | 在Web页面生成时对输入的转义处理不恰当(跨站脚本) |
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