TITLE:
SquirrelMail Cross-Site Scripting and IMAP Injection Vulnerabilities

SECUNIA ADVISORY ID:
SA18985

VERIFY ADVISORY:
http://secunia.com/advisories/18985/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
SquirrelMail 1.x
http://secunia.com/product/288/

DESCRIPTION:
Some vulnerabilities have been reported in SquirrelMail, which can be
exploited by malicious users to manipulate certain information and by
malicious people to conduct cross-site scripting attacks.

1) Input passed to the "right_main" parameter in "webmail.php" isn't
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.

2) Input passed to comments in styles isn't 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.

Successful exploitation requires that the user views the malicious
data with the Microsoft Internet Explorer browser.

3) Input passed to the "sqimap_mailbox_select mailbox" parameter
isn't properly sanitised before being used in a IMAP query and can be
exploited to inject arbitrary IMAP commands.

The vulnerabilities have been reported in version 1.4.5 and prior.

SOLUTION:
The vulnerabilities have been fixed in the CVS repository and fixes
will be included in the upcoming 1.4.6 version.

PROVIDED AND/OR DISCOVERED BY:
1) Reported by the vendor.
2) The vendor credits Scott Hughes.
3) The vendor credits Vicente Aguilera.

ORIGINAL ADVISORY:
1) http://www.squirrelmail.org/security/issue/2006-02-01
2) http://www.squirrelmail.org/security/issue/2006-02-10
3) http://www.squirrelmail.org/security/issue/2006-02-15

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