Dognædis Ref.: DGS-SEC-2
CVE Ref: CVE-2011-4541
Release Date: 2011/11/22
Discover Credits: CodeV - Code Analyzer
Bulletin Author(s): HTrovao
Type: Cross Site Scripting
Level: High (Low/High/Critical)
CVSS: 5.8 (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Vulnerable Application: Hastymail (ver. 2.1.1)
Hastymail2 is a full featured IMAP/SMTP client written in PHP. It's goal is to create a fast, secure, compliant web mail client that has great usability.
The referred vulnerability could be exploited through a XSS (Cross-Site-Scripting) attack.
Ultimately, the attacker could take complete control of the victims web-browser.
In a successful attack, the malicious script would be executed with the authenticated user permissions.
Generally, by exploiting this kind of vulnerability, it might be possible to achieve possible attack vectors to various kinds of attacks such as:
- Session/Cookie theft
- Account Hijacking
- Identity theft
- Accessing confidential resources
- Accessing pay content
- Account Denial of service
Aiming a correct resolution of the identified vulnerability, the data obtained through the $_POST['rs'] input argument should be properly sanitized for HTML and following ECMAS usage.
Users are recommended to upgrade to the newer version (v2.1.1-RC2), which is available in the application website.