中危 mbsync_project mbsync 输入验证不恰当
CVE编号
CVE-2021-20247利用情况
EXP 已公开补丁情况
官方补丁披露时间
2021-02-24漏洞描述
A flaw was found in mbsync before v1.3.5 and v1.4.1. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malicious or compromised server to use specially crafted mailbox names containing '..' path components to access data outside the designated mailbox on the opposite end of the synchronization channel. The highest threat from this vulnerability is to data confidentiality and integrity.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 | fedoraproject | extra_packages_for_enterprise_linux | 8.0 | - | |||||
| 运行在以下环境 | |||||||||
| 应用 | mbsync_project | mbsync | * | Up to (excluding) 1.3.5 | |||||
| 运行在以下环境 | |||||||||
| 应用 | mbsync_project | mbsync | * | From (including) 1.4.0 | Up to (excluding) 1.4.1 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | isync | * | Up to (excluding) 1.3.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | isync | * | Up to (excluding) 1.4.1-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | isync | * | Up to (excluding) 1.3.0-2.2~deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | isync | * | Up to (excluding) 1.3.0-2.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | isync | * | Up to (excluding) 1.3.0-2.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | isync | * | Up to (excluding) 1.2.1-2+deb9u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | isync | * | Up to (excluding) 1.3.0-2.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | isync-debuginfo | * | Up to (excluding) 1.4.1-1.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | isync-debuginfo | * | Up to (excluding) 1.4.1-1.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | isync-debuginfo | * | Up to (excluding) 1.4.1-1.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | isync | * | Up to (excluding) 1.3.5-lp152.4.3.1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 普通权限
- 影响范围 有限影响
- EXP成熟度 EXP 已公开
- 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-20 | 输入验证不恰当 |
| CWE-22 | 对路径名的限制不恰当（路径遍历） |
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