CVE-2026-78381— RansomLook 路径遍历漏洞
一分钟漏洞结论
影响对象
ransomlook ransomlook
利用判断
存在公开或 AI PoC，应优先验证
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。
RansomLook是RansomLook团队的一款勒索软件监测与分析平台。 RansomLook 2.0.0及之前版本存在路径遍历漏洞，该漏洞源于对group posts中screen字段的处理存在路径遍历问题，GroupPost.get API处理器将数据库控制的screen值直接与source/目录拼接且未验证解析路径是否在预期目录内，可能导致攻击者读取RansomLook进程可访问的任意文件，进而暴露敏感配置、API凭据、密码哈希等应用程序秘密。
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| ransomlook | ransomlook | ≤ 2.0.0 |
affected |
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一、 漏洞 CVE-2026-78381 基础信息
漏洞信息
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Vulnerability Title
RansomLook Arbitrary File Read via Path Traversal in Post screen Field
来源: CVE Program / CVE List V5
Vulnerability Description
RansomLook contains a path traversal vulnerability in the handling of the screen field associated with group posts. The GroupPost.get API handler concatenates the database-controlled screen value directly with the application's source/ directory and opens the resulting path without verifying that the resolved file remains within the intended directory.
Because the screen field is free-form and can be populated either through the administrative post editor or through data imported from a remote RansomLook instance, a malicious upstream instance can provide traversal sequences such as ../config/generic.json. When the affected post is subsequently retrieved through the API, RansomLook resolves and reads the attacker-controlled path and returns the contents of the referenced file Base64-encoded in the API response.
This can allow an attacker (being admin) controlling imported post data to read arbitrary files accessible to the RansomLook process, potentially exposing sensitive configuration data, API credentials, password hashes, or other application secrets. The attack does not require the malicious upstream to possess an account on the affected RansomLook instance.
The vulnerability is addressed by resolving screen paths with os.path.realpath() and verifying that the resolved path remains beneath the application's source/ directory. Validation is performed both when values are written and immediately before files are read. Using canonical paths also prevents traversal through symbolic links that would bypass purely lexical path normalization checks.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
Vulnerability Title
RansomLook 路径遍历漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
RansomLook是RansomLook团队的一款勒索软件监测与分析平台。 RansomLook 2.0.0及之前版本存在路径遍历漏洞，该漏洞源于对group posts中screen字段的处理存在路径遍历问题，GroupPost.get API处理器将数据库控制的screen值直接与source/目录拼接且未验证解析路径是否在预期目录内，可能导致攻击者读取RansomLook进程可访问的任意文件，进而暴露敏感配置、API凭据、密码哈希等应用程序秘密。
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 |
|---|---|---|---|---|
| ransomlook | ransomlook | 0 ~ 2.0.0 | - |
|
二、漏洞 CVE-2026-78381 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
Qwen3.6-35B-A3B
· 6417 chars
Pro+ 专属包含：
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完整可执行 POC 代码
利用链与缓解建议
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每月 100+ 条 AI 生成额度
三、漏洞 CVE-2026-78381 的情报信息
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CVE-2026-78381 补丁与修复 (1)
同批安全公告 · ransomlook · 2026-08-24 · 共 13 条
| CVE-2026-78387 | 9.4 CRITICAL | RansomLook 授权问题漏洞 |
| CVE-2026-78555 | 9.4 CRITICAL | RansomLook 信息泄露漏洞 |
| CVE-2026-78372 | 9.2 CRITICAL | RansomLook 授权问题漏洞 |
| CVE-2026-78370 | 9.2 CRITICAL | RansomLook 授权问题漏洞 |
| CVE-2026-78369 | 8.8 HIGH | RansomLook 授权问题漏洞 |
| CVE-2026-78391 | 8.8 HIGH | RansomLook 跨站脚本漏洞 |
| CVE-2026-78551 | 8.8 HIGH | RansomLook 授权问题漏洞 |
| CVE-2026-78380 | 8.7 HIGH | RansomLook 授权问题漏洞 |
| CVE-2026-78386 | 8.7 HIGH | RansomLook 信息泄露漏洞 |
| CVE-2026-78385 | 8.2 HIGH | RansomLook 服务端请求伪造漏洞 |
| CVE-2026-78553 | 7.0 HIGH | RansomLook 权限许可和访问控制问题漏洞 |
| CVE-2026-78378 | 6.9 MEDIUM | RansomLook 信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-78381
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