CVE-2025-31161— CrushFTP 安全漏洞
一分钟漏洞结论
影响对象
CrushFTP CrushFTP
利用判断
已确认在野利用，应立即处置
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。
CrushFTP是CrushFTP公司的一款文件传输服务器。 CrushFTP 10.8.4之前的10.x本和11.3.1之前的11.x版本存在安全漏洞，该漏洞源于认证绕过漏洞，可能导致账户接管。
已观察到在野利用
cisa_kev · confirmed
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一、 漏洞 CVE-2025-31161 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
CrushFTP 10 before 10.8.4 and 11 before 11.3.1 allows authentication bypass and takeover of the crushadmin account (unless a DMZ proxy instance is used), as exploited in the wild in March and April 2025, aka "Unauthenticated HTTP(S) port access." A race condition exists in the AWS4-HMAC (compatible with S3) authorization method of the HTTP component of the FTP server. The server first verifies the existence of the user by performing a call to login_user_pass() with no password requirement. This will authenticate the session through the HMAC verification process and up until the server checks for user verification once more. The vulnerability can be further stabilized, eliminating the need for successfully triggering a race condition, by sending a mangled AWS4-HMAC header. By providing only the username and a following slash (/), the server will successfully find a username, which triggers the successful anypass authentication process, but the server will fail to find the expected SignedHeaders entry, resulting in an index-out-of-bounds error that stops the code from reaching the session cleanup. Together, these issues make it trivial to authenticate as any known or guessable user (e.g., crushadmin), and can lead to a full compromise of the system by obtaining an administrative account.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
使用基本弱点进行的认证绕过
来源: CVE Program / CVE List V5
Vulnerability Title
CrushFTP 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
CrushFTP是CrushFTP公司的一款文件传输服务器。 CrushFTP 10.8.4之前的10.x本和11.3.1之前的11.x版本存在安全漏洞，该漏洞源于认证绕过漏洞，可能导致账户接管。
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
二、漏洞 CVE-2025-31161 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | Proof of Concept for CVE-2025-31161 / CVE-2025-2825 | https://github.com/Immersive-Labs-Sec/CVE-2025-31161 | POC详情 |
| 2 | None | https://github.com/llussiess/CVE-2025-31161 | POC详情 |
| 3 | CrushFTP versions 10.0.0 through 10.8.3 and 11.0.0 through 11.3.0 are affected by a vulnerability that may result in unauthenticated access. Remote and unauthenticated HTTP requests to CrushFTP may allow attackers to gain unauthorized access. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-31161.yaml | POC详情 |
| 4 | CrushFTP CVE-2025-31161 Exploit Tool 🔓 | https://github.com/TX-One/CVE-2025-31161 | POC详情 |
| 5 | Official Nuclei template for CVE-2025-31161 (formerly CVE-2025-2825) | https://github.com/SUPRAAA-1337/Nuclei_CVE-2025-31161_CVE-2025-2825 | POC详情 |
| 6 | CVE-2025-31161 python exploit | https://github.com/SUPRAAA-1337/CVE-2025-31161_exploit | POC详情 |
| 7 | 🛡️ CVE-2025-31161 - CrushFTP User Creation Authentication Bypass Exploit | https://github.com/0xgh057r3c0n/CVE-2025-31161 | POC详情 |
| 8 | CVE-2025-31161 | https://github.com/B1ack4sh/Blackash-CVE-2025-31161 | POC详情 |
| 9 | CrushFTP 11.3.1 - Authentication Bypass | https://github.com/ibrahmsql/CVE-2025-31161 | POC详情 |
| 10 | None | https://github.com/r0otk3r/CVE-2025-31161 | POC详情 |
| 11 | PoC CVE-2025-31161 - Authentication Bypass CrushFTP | https://github.com/f4dee-backup/CVE-2025-31161 | POC详情 |
| 12 | Authentication bypass vulnerability in versions of the CrushFTP server. | https://github.com/acan0007/CVE-2025-31161 | POC详情 |
| 13 | Scans target to see if its vulnerable to CVE-2025-31161 | https://github.com/Teexo/CVE-2025-31161 | POC详情 |
| 14 | None | https://github.com/0xDTC/CrushFTP-auth-bypass-CVE-2025-31161 | POC详情 |
| 15 | 🛡️ CVE-2025-31161 - CrushFTP User Creation Authentication Bypass Exploit | https://github.com/zr1p3r/CVE-2025-31161 | POC详情 |
| 16 | None | https://github.com/cesarbtakeda/CVE-2025-31161 | POC详情 |
| 17 | CVE-2025-31161 | https://github.com/Ashwesker/Blackash-CVE-2025-31161 | POC详情 |
| 18 | None | https://github.com/ch3m1calspain/CVE-2025-31161 | POC详情 |
| 19 | CVE-2025-31161 | https://github.com/Ashwesker/Ashwesker-CVE-2025-31161 | POC详情 |
| 20 | None | https://github.com/ch3m1cl/CVE-2025-31161 | POC详情 |
| 21 | PoC Authentication Bypass to RCE to Exploit CVE-2025-31161 | https://github.com/Dairrow/CVE-2025-31161 | POC详情 |
| 22 | CVE-2025-31161 | https://github.com/Drelinss/Blackash-CVE-2025-31161 | POC详情 |
| 23 | A proof of concept for CVE-2025-31161, using mangled HTTP header to perform unauthenticated impersonation of any user in Crush FTP server. | https://github.com/Shisones/CVE-2025-31161 | POC详情 |
| 24 | Wrote an exploit in Go for CVE-2025-31161 affecting crushFTP. | https://github.com/eserror/CVE-2025-31161 | POC详情 |
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CVE-2025-31161 安全博客文章 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2025-31161
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