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CVE-2022-31138— OS Command Injection in mailcow

Quick assessment

Affected
mailcow mailcow-dockerized
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mailcow是一个邮件服务器套件。 mailcow 2022-06a之前版本存在操作系统命令注入漏洞，该漏洞源于可以通过操纵自定义参数 regexmess、skipmess、regexflag、delete2foldersonly、delete2foldersbutnot、regextrans2、pipemess 或 maxlinelengthcmd 来利用扩展权限漏洞来执行任意代码。

CVSS 8.8 · High EPSS 3.25% · P88
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I. Basic Information for CVE-2022-31138

Vulnerability Information
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Vulnerability Title
OS Command Injection in mailcow
Source: CVE Program / CVE List V5
Vulnerability Description
mailcow is a mailserver suite. Prior to mailcow-dockerized version 2022-06a, an extended privilege vulnerability can be exploited by manipulating the custom parameters regexmess, skipmess, regexflag, delete2foldersonly, delete2foldersbutnot, regextrans2, pipemess, or maxlinelengthcmd to execute arbitrary code. Users should update their mailcow instances with the `update.sh` script in the mailcow root directory to 2022-06a or newer to receive a patch for this issue. As a temporary workaround, the Syncjob ACL can be removed from all mailbox users, preventing changes to those settings.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
mailcow 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mailcow是一个邮件服务器套件。 mailcow 2022-06a之前版本存在操作系统命令注入漏洞，该漏洞源于可以通过操纵自定义参数 regexmess、skipmess、regexflag、delete2foldersonly、delete2foldersbutnot、regextrans2、pipemess 或 maxlinelengthcmd 来利用扩展权限漏洞来执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mailcow mailcow-dockerized < 2022-06a -

II. Public POCs for CVE-2022-31138

# POC Description Source Link Shenlong Link
1 Mailcow CVE-2022-31138 https://github.com/ly1g3/Mailcow-CVE-2022-31138 POC Details
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III. Intelligence Information for CVE-2022-31138

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Patches & Fixes for CVE-2022-31138 (1)

Vendor Advisories for CVE-2022-31138 (1)

Other References for CVE-2022-31138 (2)

IV. Related Vulnerabilities

Same product: mailcow-dockerized
Same vendor: mailcow
Same weakness: CWE-78

V. Comments for CVE-2022-31138

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