A fast tool to mass scan for a vulnerability on Microsoft Exchange Server that allows an attacker bypassing the authentication and impersonating as the admin (CVE-2021-26855).

Related tags

Security microsoft-exchange microsoft-exchange-server ssrf proxylogon cve-2021-26855 cve-2021-27065 microsoft-exchange-proxylogon
Overview

proxylogscan

This tool to mass scan for a vulnerability on Microsoft Exchange Server that allows an attacker bypassing the authentication and impersonating as the admin (CVE-2021-26855). By chaining this bug with another post-auth arbitrary-file-write vulnerability to get code execution (CVE-2021-27065). As a result, an unauthenticated attacker can execute arbitrary commands on Microsoft Exchange Server.

This vulnerability affects (Exchange 2013 Versions < 15.00.1497.012, Exchange 2016 CU18 < 15.01.2106.013, Exchange 2016 CU19 < 15.01.2176.009, Exchange 2019 CU7 < 15.02.0721.013, Exchange 2019 CU8 < 15.02.0792.010).

All components are vulnerable by default.

Installation

Go 1.13+ required.

$ go get dw1.io/proxylogscan

Or download pre-built binary at release page.

Usage

$ proxylogscan -h
Usage of proxylogscan:
  -m string
        Request method (default "GET")
  -p string
        Proxy URL (HTTP/SOCKSv5)
  -s    Silent mode (Only display vulnerable/suppress errors)
  -u string
        Target URL/list to scan

Examples

There are 3 ways to use this tool.

$ proxylogscan -u https://domain.tld
$ proxylogscan -u urls.txt
$ cat urls.txt | proxylogscan
$ subfinder -silent -d domain.tld | httpx -silent | proxylogscan

Supporting Materials

License

proxylogscan is distributed under MIT.

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Comments
  • Unable to Install

    Unable to Install

    After running this command getting this Error

    ┌──(root💀kali)-[~] └─# go get dw1.io/proxylogscan 1 ⨯

    cd .; git clone -- https://github.com/kitabisa/mubeng/pkg/mubeng /root/go/src/ktbs.dev/mubeng/pkg/mubeng

    Cloning into '/root/go/src/ktbs.dev/mubeng/pkg/mubeng'... remote: Not Found fatal: repository 'https://github.com/kitabisa/mubeng/pkg/mubeng/' not found package ktbs.dev/mubeng/pkg/mubeng: exit status 128

    Please let me know the solution for the same

    opened by 007divyachawla 2
  • socket: too many open files

    socket: too many open files

    Hello! [ERR] Get "XXX": dial tcp XXX: socket: too many open files Then Killed. Linux 4.19.0-14-amd64 #1 SMP Debian 4.19.171-2 (2021-01-30) x86_64 GNU/Linux go version go1.16.3 linux/amd64 ulimit -> unlimited

    opened by ghost 0
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