CVE编号
CVE-2021-22897利用情况
暂无补丁情况
官方补丁披露时间
2021-06-12漏洞描述
curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.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://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf | |
| https://curl.se/docs/CVE-2021-22897.html | |
| https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511 | |
| https://hackerone.com/reports/1172857 | |
| https://security.netapp.com/advisory/ntap-20210727-0007/ | |
| https://www.oracle.com//security-alerts/cpujul2021.html | |
| https://www.oracle.com/security-alerts/cpujan2022.html |
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 | curl | * |
From (including) 7.61.0 |
Up to (including) 7.76.1 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | curl | * |
Up to (excluding) 0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | curl | * |
Up to (excluding) 0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | curl | * |
Up to (excluding) 0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | curl | * |
Up to (excluding) 0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | curl | * |
Up to (excluding) 0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | curl | * |
Up to (excluding) 0 |
|||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 N/A
- 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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