CVE-2023-34108— mailcow 操作系统命令注入漏洞
一分钟漏洞结论
影响对象
mailcow mailcow-dockerized
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
mailcow是一个邮件服务器套件。 mailcow 存在操作系统命令注入漏洞，该漏洞源于允许攻击者在身份验证过程中使用特制密码来操纵内部Dovecot变量。
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一、 漏洞 CVE-2023-34108 基础信息
漏洞信息
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Vulnerability Title
Manipulation of Internal Dovecot Variables in mailcow via crafted Passwords
来源: CVE Program / CVE List V5
Vulnerability Description
mailcow is a mail server suite based on Dovecot, Postfix and other open source software, that provides a modern web UI for user/server administration. A vulnerability has been discovered in mailcow which allows an attacker to manipulate internal Dovecot variables by using specially crafted passwords during the authentication process. The issue arises from the behavior of the `passwd-verify.lua` script, which is responsible for verifying user passwords during login attempts. Upon a successful login, the script returns a response in the format of "password=<valid-password>", indicating the successful authentication. By crafting a password with additional key-value pairs appended to it, an attacker can manipulate the returned string and influence the internal behavior of Dovecot. For example, using the password "123 mail_crypt_save_version=0" would cause the `passwd-verify.lua` script to return the string "password=123 mail_crypt_save_version=0". Consequently, Dovecot will interpret this string and set the internal variables accordingly, leading to unintended consequences. This vulnerability can be exploited by an authenticated attacker who has the ability to set their own password. Successful exploitation of this vulnerability could result in unauthorized access to user accounts, bypassing security controls, or other malicious activities. This issue has been patched in version `2023-05a`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
来源: 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
来源: 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)
来源: CVE Program / CVE List V5
Vulnerability Title
mailcow 操作系统命令注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
mailcow是一个邮件服务器套件。 mailcow 存在操作系统命令注入漏洞，该漏洞源于允许攻击者在身份验证过程中使用特制密码来操纵内部Dovecot变量。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| mailcow | mailcow-dockerized | < 2023-05a | - |
|
二、漏洞 CVE-2023-34108 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2023-34108 补丁与修复 (1)
CVE-2023-34108 厂商安全公告 (1)
CVE-2023-34108 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2023-34108
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