Jira CVE-2019-8451 POC

Description

Proof of concept scan to check if a Jira host is vulnerable to CVE-2019-8451

CVE-2019-8451

CVE-2019-8451 is a pre-authentication server side request forgery (SSRF) vulnerability found in the /plugins/servlet/gadgets/makeRequest resource.

This vulnerability was introduced in Jira server version 7.6.0, and fixed in versions 7.13.9 and 8.4.0.

Requirements

Only needs the requests library.

Install with pip3 install requests

Usage

$ ./jira-2019-8451.py -h
usage: jira-2019-8451.py [-h] [-u URL] [-c]

For checking if a Jira instance is vunlerable to CVE-2019-8451

optional arguments:
  -h, --help         show this help message and exit
  -u URL, --url URL  URL of the target Jira instance e.g. '-u
                     https://localhost:8080'
  -c, --check        Only check the Jira version; doesn't send SSRF attempt

Example Output

Host probably vulnerable:

$ python3 jira.py -u https://localhost:8080
[-] Testing https://localhost:8080...
[-] Checking for version...
[-] Jira version appears to be: 8.3.4
[-] Sending SSRF test...
[+] Host appears to be vulnerable!

Host probably not vulnerable:

$ python3 jira.py -u https://localhost:8080
[-] Testing https://localhost:8080...
[-] Checking for version...
[-] Jira version appears to be: 8.4.1
[-] Sending SSRF test...
[!] Host doesn't appear to be vulnerable.

References

• https://www.tenable.com/blog/cve-2019-8451-proof-of-concept-available-for-server-side-request-forgery-ssrf-vulnerability-in
• https://jira.atlassian.com/browse/JRASERVER-69793