Secure testing team - Jul 2012 - Bug#683288: rt-authen-externalauth: privilege escalation

Package: rt-authen-externalauth
Severity: grave
Tags: security
Justification: user security hole

Hi,

a security issue has been found in rt-authen-externalauth package. From
http://blog.bestpractical.com/2012/07/security-vulnerabilities-in-three-commonly-deployed-rt-extensions.html:

----
RT::Authen::ExternalAuth 0.10 and below (for all versions of RT) are
vulnerable to an escalation of privilege attack where the URL of a RSS
feed of the user can be used to acquire a fully logged-in session as
that user. CVE-2012-2770 has been assigned to this vulnerability.
----

For Wheezy, please fix this  with an isolated fix instead of updating to a
new upstream release (since the freeze is in effect)

Regards,
-- 
Yves-Alexis

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, ''unstable''), (500,
''testing''), (500, ''stable''), (1,
''experimental'')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-3-grsec-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash