Calacode ATMail 5.0 - Cross Site Scripting and Cookie Manipulation Issue

2007.04.23
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-79


Ogólna skala CVSS: 6.8/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 8.6/10
Wymagany dostęp: Zdalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

[MajorSecurity Advisory #43]Calacode ATMail 5.0 - Cross Site Scripting and Cookie Manipulation Issue Details ======= Product: @Mail 5.0 Security-Risk: moderated Remote-Exploit: yes Vendor-URL: http://www.atmail.com/ Vendor-Status: informed Advisory-Status: published Credits ============ Discovered by: David Vieira-Kurz http://www.majorsecurity.de Original Advisory: ============ http://www.majorsecurity.de/index_2.php?major_rls=major_rls43 Introduction ============ @Mail is a known Webmail client software. "The @Mail software powers over 5 million active email accounts worldwide." [from http://atmail.com] More Details ============ Cross Site Scripting: Input passed directly to the "username" parameter in "atmail.php" is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. Cookie Manipulation: Input passed directly to the "username" parameter in "atmail.php" is not properly sanitised before being returned to the user. This can be exploited to inject custom META tags to alter the cookies stored in the browser, set custom cookies and to modify the cookie information. Workaround ============= Edit the source code to ensure that input is properly sanitised. You should work with "htmlspecialchars()" or "htmlentities()" php-function to ensure that html tags are not going to be executed. Example: $username = htmlentities($_POST['username']); $test = htmlspecialchars($_GET('test')); ?> History/Timeline ================ 05.04.2007 discovery of the vulnerability 06.04.2007 additional tests with other versions 07.04.2007 contacted the vendor 11.04.2007 advisory is written 11.04.2007 advisory released MajorSecurity ======= MajorSecurity is a non-profit German penetration testing and security research project which consists of only one person at the present time. http://majorsecurity.de/index.php?major_rls=home


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