Uebimiau 2.7.11 Cross Site Scripting / Open Redirection

2013.10.10
Risk: Low
Local: No
Remote: Yes

============================================= INTERNET SECURITY AUDITORS ALERT 2013-008 - Original release date: March 15th, 2013 - Last revised: March 20th, 2013 - Discovered by: Manuel Garcia Cardenas - Severity: 4,8/10 (CVSS Base Score) - CVE-ID: CVE-2013-2621, CVE-2013-2622, CVE-2013-2623 ============================================= I. VULNERABILITY ------------------------- Multiple Vulnerabilities in Uebimiau <= 2.7.11 II. BACKGROUND ------------------------- UebiMiau is a webmail reader application supporting both IMAP and POP3 protocols. It can be installed without dependence of any PHP's extra modules or a separate database. It is Open source software published under GNU General Public License (GPL). UebiMiau has not been developed since March 2006 and does not work with PHP 5.3 due to its use of deprecated functions. A new project, which is a forked reboot of UebiMiau based on the jimjag patches, named Telaen is an actively developed drop-in replacement. III. DESCRIPTION ------------------------- Uebimiau 2.7.11 and lower versions contain a flaw that allows a remote redirection attack. This flaw exists because the application does not properly sanitise the file "redir.php". This allows an attacker to create a specially crafted URL, that if clicked, would redirect a victim from the intended legitimate web site to an arbitrary web site of the attacker's choice. Aditionaly, it has been detected a reflected XSS vulnerability in Uebimiau 2.7.11 and lower versions, that allows the execution of arbitrary HTML/JavaScript code to be executed in the context of the victim user's browser. The code injection is done through the parameter "f_email" in the page index.php and parameter "selected_theme" in the page error.php. IV. PROOF OF CONCEPT ------------------------- REDIRECT: http://vulnerablesite.com/uebimiau/redir.php?http://www.malicious-site.com XSS 1: http://vulnerablesite.com/uebimiau/error.php?f_pass=blackybr&sess[auth]=1&selected_theme="><script>alert("XSS")</script> XSS 2: http://vulnerablesite.com/uebimiau/index.php?tid=default&lid=en_UK&f_email="><script>alert("XSS")</script> V. BUSINESS IMPACT ------------------------- REDIRECT: An attacker can redirect any user to any malicious website. Below I have mentioned the vulnerable URL. XSS: An attacker can execute arbitrary HTML or JavaScript code in a targeted user's browser, this can leverage to steal sensitive information as user credentials, personal data, etc. VI. SYSTEMS AFFECTED ------------------------- All Versions of Uebimiau. VII. SOLUTION ------------------------- REDIRECT AND XSS: All data received by the application and can be modified by the user, before making any kind of transaction with them must be validated. VIII. REFERENCES ------------------------- http://www.uebimiau.org http://www.isecauditors.com IX. CREDITS ------------------------- This vulnerability has been discovered by Manuel Garcia Cardenas (mgarcia (at) isecauditors (dot) com). X. REVISION HISTORY ------------------------ March 15, 2013 1: Initial release XI. DISCLOSURE TIMELINE ------------------------- March 15, 2013: Vulnerability acquired by Internet Security Auditors (www.isecauditors.com) March 20, 2013: Sent to devel Manager. March 21, 2013: Answer. After 4 years of previous version, the developer will publish new patched version in 3 days! September 26, 2013: Ask to devel manager for feedback October 09, 2013: After some months without feedback, we do a full-disclosure XII. LEGAL NOTICES ------------------------- The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Internet Security Auditors accepts no responsibility for any damage caused by the use or misuse of this information. XIII. ABOUT ------------------------- Internet Security Auditors is a Spain based leader in web application testing, network security, penetration testing, security compliance implementation and assessing. Our clients include some of the largest companies in areas such as finance, telecommunications, insurance, ITC, etc. We are vendor independent provider with a deep expertise since 2001. Our efforts in R&D include vulnerability research, open security project collaboration and whitepapers, presentations and security events participation and promotion. For further information regarding our security services, contact us. XIV. FOLLOW US ------------------------- You can follow Internet Security Auditors, news and security advisories at: https://www.facebook.com/ISecAuditors https://twitter.com/ISecAuditors http://www.linkedin.com/company/internet-security-auditors http://www.youtube.com/user/ISecAuditors

References:

https://www.facebook.com/ISecAuditors
https://twitter.com/ISecAuditors
http://www.linkedin.com/company/internet-security-auditors
http://www.youtube.com/user/ISecAuditors


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