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CVE-2020-12641 PoC — Roundcube Webmail 操作系统命令注入漏洞

Source
Associated Vulnerability
Title:Roundcube Webmail 操作系统命令注入漏洞 (CVE-2020-12641)
Description:Roundcube Webmail是一款基于浏览器的开源IMAP客户端,它支持地址薄管理、信息搜索、拼写检查等。 Roundcube Webmail 1.4.4 版本之前版本中的 rcube_image.php 文件存在操作系统命令注入漏洞。攻击者可借助 shell 元字符利用该漏洞执行任意代码。
Description
CVE-2020-12641: Command Injection via “_im_convert_path” Parameter in Roundcube Webmail
Readme
# CVE-2020-12641: Command Injection via “_im_convert_path” Parameter in Roundcube Webmail

A Command Injection vulnerability exists in Roundcube versions before 1.4.4, 1.3.11 and 1.2.10.

Because the "_im_convert_path" does not perform sanitization/input filtering, an attacker with access to the Roundcube Installer can inject system commands in this parameter that will execute when any user opens any email containing a "non-standard" image.

### Vendor Disclosure:

The vendor's disclosure and fix for this vulnerability can be found [here](https://roundcube.net/news/2020/04/29/security-updates-1.4.4-1.3.11-and-1.2.10).

### Requirements:

This vulnerability requires:
<br/>
- Access to the Roundcube Webmail installer component
- Waiting for a Roundcube user to open an email containg a non-standard image

### Proof Of Concept:

More details and the exploitation process can be found in this [PDF](https://github.com/mbadanoiu/CVE-2020-12641/blob/main/Roundcube%20Disclosures%20-%20CVE-2020-12641.pdf).
File Snapshot

[4.0K] /data/pocs/b6fe7f624a83769d63ef4f71f97d30f18256947a ├── [1015] README.md └── [370K] Roundcube Disclosures - CVE-2020-12641.pdf 0 directories, 2 files
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