CVE-2021-26855 PoC — Microsoft Exchange Server Remote Code Execution Vulnerability

Source

https://github.com/pussycat0x/CVE-2021-26855-SSRF

Associated Vulnerability

Title: Microsoft Exchange Server Remote Code Execution Vulnerability (CVE-2021-26855)
Description:Microsoft Exchange Server Remote Code Execution Vulnerability

Description

This script helps to identify  CVE-2021-26855  ssrf Poc

Readme

# CVE-2021-26855-SSRF-Poc
This script helps to identify  CVE-2021-26855  ssrf Poc

Reference: https://proxylogon.com/ 

## Script usage

#### python CVE-2021-26855.py -H target.com -B xxxxxxxxxxxxxxxxxx.burpcollaborator.net

![PoC](https://github.com/pussycat0x/CVE-2021-26855-SSRF/blob/main/PoC.JPG)

If you are able to retrieve tokens through HTTPS request. then the target is vulnerable. otherwise, it will be a false positive.
Check the following headers.
X-SourceCafeServer:
X-CommonAccessToken:

![http request](https://user-images.githubusercontent.com/65701233/110593868-20ce2d00-81a2-11eb-8613-23470a22b40d.png)

File Snapshot

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →