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CVE-2014-1599 - 39 Type-1 XSS in SFR DSL/Fiber Box
From: "alejandr0.w3b.p0wn3r" <alejandr0.w3b.p0wn3r () gmail com>
Date: Wed, 05 Mar 2014 03:52:01 +0000

39 Type-1 XSS in SFR ADSL/Fiber Box.
SFR is the french Vodafone (estimated DSL user base of 5.2 Millions).

* affected product:

* vulnerabilities:
        5 non-filtered Type-1 XSS
        6 non-filtered Type-1 XSS
        7 non-filtered Type-1 XSS
        12 non-filtered Type-1 XSS
        1 non-filtered Type-1 XSS
        8 non-filtered Type-1 XSS

* exploitation hypotheses:
        - user already logged-in (or tricked by SE techniques to authenticate)
        - ip address of the SFR Box router is known (most users use the default

* #number of attack vectors:
        39 Type-1 XSS
* exploitation scenario:
If a user is tricked into authenticating into its interface,
an attacker can XSS the user, and thus getting read and write access to
the router configuration webpages.
Such as scenario is mainly possible due to:
 - non filtered reflections (mainly Type-1 / reflected)
 - lack of Content Security Policy
Moreover, no anti-CSRF token such as view-states are present, thus there
is the possibility of modifying the routing tables even without an XSS,
if the user is authenticated in the box.

A non limitative list of actions include:
 - getting authentication credentials (wireless, DSL credentials)
 - rebooting the router
 - modifying the route table (thus possibility of content injection if
an attacker controlled server is on the route)
 - DDOSing a target with numerous XSS'ed clients

* timeline:
 - 2013-12-21: discovery
 - 2014-01-06: notification to vendor, ask for patch release
 - 2014-01-06: vendor acknowledges but does not answer on the patching
 - 2014-01-20: request for update or planned date of patch release
 - 2014-02-25: public disclosure

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  • CVE-2014-1599 - 39 Type-1 XSS in SFR DSL/Fiber Box alejandr0.w3b.p0wn3r (Mar 05)
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