Title: SquirrelMail global.php Cross Site Scripting Vulnerability
Severity: HIGH
Description:
SquirrelMail is a standards-based webmail package written in PHP4. It is available for Linux and Unix based operating systems.
A cross-site scripting vulnerability has been discovered in SquirrelMail. The global.php script fails to adequately sanitize content passed to the strip_tags() function. Specifically, the user-supplied values for PHP_SELF variable are passed to the strip_tags() function but are not saved back to the variable.
An attacker can exploit this vulnerability by creating a specially crafted URL that includes malicious HTML code for pages that use the PHP_SELF as the FORM action.
This may allow for theft of cookie-based authentication credentials and other attacks.
Affected Products:
- Debian Linux 3.0.0
- Debian Linux 3.0.0 alpha
- Debian Linux 3.0.0 arm
- Debian Linux 3.0.0 hppa
- Debian Linux 3.0.0 ia-32
- Debian Linux 3.0.0 ia-64
- Debian Linux 3.0.0 m68k
- Debian Linux 3.0.0 mips
- Debian Linux 3.0.0 mipsel
- Debian Linux 3.0.0 ppc
- Debian Linux 3.0.0 s/390
- Debian Linux 3.0.0 sparc
- RedHat Linux 8.0.0
- SquirrelMail SquirrelMail 1.2.6
- SquirrelMail SquirrelMail 1.2.7
- SquirrelMail SquirrelMail 1.2.8
- Terra Soft Solutions Yellow Dog Linux 3.0.0
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