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CVE-2021-3019

Quick assessment

Affected
n/a n/a
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.

Ffay Lanproxy是Ffay个人开发者的一个可将局域网内服务代理到公网的内网穿透工具。 ffay lanproxy 0.1 存在路径遍历漏洞，该漏洞允许目录遍历读取/../conf/config.properties来获取到内部网连接的凭据。

AI Predicted 7.5 Difficulty: Easy EPSS 18.98% · P97

Public Exploits 1

Nuclei · 1 CVE-2021-3019.yaml [template]

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2021-3019

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Ffay Lanproxy 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ffay Lanproxy是Ffay个人开发者的一个可将局域网内服务代理到公网的内网穿透工具。 ffay lanproxy 0.1 存在路径遍历漏洞，该漏洞允许目录遍历读取/../conf/config.properties来获取到内部网连接的凭据。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-3019

# POC Description Source Link Shenlong Link
1 lanproxy 目录遍历漏洞批量检测 (CVE-2021-3019) https://github.com/B1anda0/CVE-2021-3019 POC Details
2 CVE-2021-3019 lanproxy目录遍历任意文件读取漏洞探测POC https://github.com/0xf4n9x/CVE-2021-3019 POC Details
3 lanproxy 目录遍历漏洞批量检测用户名密码POC (CVE-2021-3019) https://github.com/Maksim-venus/CVE-2021-3019 POC Details
4 [CVE-2021-3019] LanProxy Directory Traversal https://github.com/murataydemir/CVE-2021-3019 POC Details
5 lanproxy(CVE-2021-3019)目录遍历 https://github.com/Aoyuh/cve-2021-3019 POC Details
6 None https://github.com/givemefivw/CVE-2021-3019 POC Details
7 None https://github.com/qiezi-maozi/CVE-2021-3019-Lanproxy POC Details
8 CVE-2021-3019 https://github.com/a1665454764/CVE-2021-3019 POC Details
9 ffay lanproxy 0.1 is susceptible to a directory traversal vulnerability that could let attackers read /../conf/config.properties to obtain credentials for a connection to the intranet. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3019.yaml POC Details
10 None https://github.com/Threekiii/Awesome-POC/blob/master/Web%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/Lanproxy%20%E7%9B%AE%E5%BD%95%E9%81%8D%E5%8E%86%E6%BC%8F%E6%B4%9E%20CVE-2021-3019.md POC Details
11 None https://github.com/chaitin/xray-plugins/blob/main/poc/manual/lanproxy-cve-2021-3019-lfi.yml POC Details
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III. Intelligence Information for CVE-2021-3019

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Patches & Fixes for CVE-2021-3019 (1)

Other References for CVE-2021-3019 (1)

Same Patch Batch · n/a · 2021-01-05 · 31 CVEs total

CVE-2020-36158 8.8 HIGH Linux kernel 安全漏洞
CVE-2020-36066 7.5 HIGH Tidwall Gjson 安全漏洞
CVE-2020-36067 7.5 HIGH Tidwall Gjson 输入验证错误漏洞
CVE-2020-36159 5.3 MEDIUM Veritas Desktop and Laptop Option 信息泄露漏洞
CVE-2020-27845 OpenJPEG 缓冲区错误漏洞
CVE-2021-3026 Invision Community 跨站脚本漏洞
CVE-2020-23249 Gigamon GigaVUE-OS 安全漏洞
CVE-2020-23250 Gigamon GigaVUE-OS 加密问题漏洞
CVE-2020-36051 MiniCMS 路径遍历漏洞
CVE-2020-36052 MiniCMS 路径遍历漏洞
CVE-2019-20484 Viki Solutions Viki Vera 访问控制错误漏洞
CVE-2019-20483 Viki Solutions Viki Vera 跨站脚本漏洞
CVE-2020-29437 Orangehrm SQL注入漏洞
CVE-2021-22492 多款 Samsung 产品缓冲区错误漏洞
CVE-2021-22495 Samsung mobile devices 缓冲区错误漏洞
CVE-2021-22494 Samsung Note20 安全漏洞
CVE-2020-27844 OpenJPEG 输入验证错误漏洞
CVE-2021-3022 LG mobile devices 安全漏洞
CVE-2020-27843 OpenJPEG 缓冲区错误漏洞
CVE-2020-27842 OpenJPEG 缓冲区错误漏洞

Showing top 20 of 31 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-3019

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