低危 取消PRIVILEGED选项时不安全地放弃权限
CVE编号
CVE-2019-20044利用情况
暂无补丁情况
官方补丁披露时间
2020-02-25漏洞描述
在5.8之前的Zsh中，能够执行命令的攻击者可以重新获得--no-PRIVILEGED选项放弃的特权。 zsh无法覆盖保存的uid，因此可以通过使用调用setuid()的模块执行MODULE_PATH=/dir/with/module zmodload来恢复原始特权。解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://www.zsh.org/mla/zsh-announce/141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 | zsh | zsh | * | Up to (excluding) 5.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | zsh-debuginfo | * | Up to (excluding) 5.0.2-34.1.al7.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | zsh | * | Up to (excluding) 5.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | zsh | * | Up to (excluding) 5.7.1-6.amzn2.0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_6 | zsh | * | Up to (excluding) 4.3.11-11.el6_10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_7 | zsh | * | Up to (excluding) 5.0.2-34.el7_7.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | zsh | * | Up to (excluding) 5.5.1-6.el8_1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | zsh | * | Up to (including) 5.7.1-1+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | zsh | * | Up to (excluding) 5.8-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | zsh | * | Up to (excluding) 5.8-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | zsh | * | Up to (excluding) 5.0.7-5+deb8u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | zsh | * | Up to (excluding) 5.3.1-4+deb9u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | zsh | * | Up to (excluding) 5.8-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_30 | zsh-debugsource | * | Up to (excluding) 5.7.1-6.fc30 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_31 | zsh-debugsource | * | Up to (excluding) 5.7.1-6.fc31 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP1 | zsh | * | Up to (excluding) 5.7.1-6.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | zsh | * | Up to (excluding) 5.7.1-6.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP1 | zsh | * | Up to (excluding) 5.7.1-6.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP1 | zsh | * | Up to (excluding) 5.7.1-6.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | zsh | * | Up to (excluding) 5.7.1-6.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | zsh-htmldoc | * | Up to (excluding) 5.6-7.5.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | zsh | * | Up to (excluding) 5.6-7.5.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_6 | oraclelinux-release | * | Up to (excluding) 4.3.11-11.el6_10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 5.0.2-34.el7_7.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 5.5.1-6.el8_1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_6 | zsh | * | Up to (excluding) 0:4.3.11-11.el6_10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_7 | zsh | * | Up to (excluding) 5.0.2-34.el7_7.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | zsh | * | Up to (excluding) 5.5.1-6.el8_1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | zsh | * | Up to (excluding) 5.0.5-6.19.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | zsh | * | Up to (excluding) 5.4.2-3ubuntu3.2 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 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 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 100
| CWE-ID | 漏洞类型 |
| CWE-273 | 对于放弃特权的检查不恰当 |
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