低危 haxx libcurl 使用欺骗进行的认证绕过
CVE编号
CVE-2021-22890利用情况
暂无补丁情况
官方补丁披露时间
2021-04-02漏洞描述
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.解决建议
厂商已发布了漏洞修复程序，请及时关注更新：http://www.debian.org/security/2021/dsa-4881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 | haxx | libcurl | * | From (including) 7.63.0 | Up to (including) 7.75.0 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | curl | * | Up to (excluding) 7.76.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | curl | * | Up to (excluding) 7.64.0-4+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | curl | * | Up to (excluding) 7.74.0-1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | curl | * | Up to (excluding) 7.74.0-1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | curl | * | Up to (excluding) 7.52.1-5+deb9u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | curl | * | Up to (excluding) 7.74.0-1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | curl | * | Up to (excluding) 7.69.1-8.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | curl | * | Up to (excluding) 7.71.1-9.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | curl | * | Up to (excluding) 7.76.0-1.fc34 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | curl | * | Up to (excluding) 7.66.0-lp152.3.15.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | curl | * | Up to (excluding) 7.68.0-1ubuntu2.5 | |||||
- 攻击路径 远程
- 攻击复杂度 困难
- 权限要求 无需权限
- 影响范围 越权影响
- EXP成熟度 N/A
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 传输被破坏
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-290 | 使用欺骗进行的认证绕过 |
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