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_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
(including)
7.74.0-1.1
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
(including)
7.74.0-1.1
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
阿里云评分
2.8
  • 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
阿里云安全产品覆盖情况