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Horde IMP: Security bypass


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200802-03 / horde-imp
Release Date February 11, 2008
Latest Revision February 11, 2008: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
www-apps/horde-imp < 4.1.6 >= 4.1.6 All supported architectures

Related bugreports: #205377


Insufficient checks in Horde may allow a remote attacker to bypass security restrictions.

2.  Impact Information


Horde IMP provides a web-based access to IMAP and POP3 mailboxes.


Ulf Harnhammar, Secunia Research discovered that the "frame" and "frameset" HTML tags are not properly filtered out. He also reported that certain HTTP requests are executed without being checked.


A remote attacker could entice a user to open a specially crafted HTML e-mail, possibly resulting in the deletion of arbitrary e-mail messages.

3.  Resolution Information


There is no known workaround at this time.


All Horde IMP users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-apps/horde-imp-4.1.6"

4.  References


Page updated February 11, 2008

Summary: This is a Gentoo Linux Security Advisory

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