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securityvulnsSecurityvulnsSECURITYVULNS:DOC:22053
HistoryJun 18, 2009 - 12:00 a.m.

Nokia 6212 classic URI spoofing and DoS advisory (original date: Dec. 2008)

2009-06-1800:00:00
vulners.com
18

Vulnerability Report

— BEGIN ADVISORY —

Manufacturer: Nokia (www.nokia.com)
Device: Nokia 6212 Classic
Firmware: V 05.16, 29-09-08, RM-396
Device Type: mobile phone
OS: Nokia Series40

Subsystem: Near Field Communication


Executive Summary:
URL Spoofing when displaying the content of a NDEF
URI tag. Web browser does not display full hostname when
loading a web page.

Crash of the parser for parts of a NDEF record, reboots
graphical user interface (GUI) of phone.


Reporter: Collin Mulliner <collin[AT]mulliner.org>


Affiliation: MUlliNER.ORG / the trifinite group


Time line:

Presented at 25C3 : 29. December 2008
Reported to vendor : 01. January 2009
Received ack. : 05. January 2009
Published to mailing lists : 18. June 2009


Brief Technical Details:

The Nokia 6212 Classic mobile phone is a mobile phone featuring the
Near Field Communication (NFC) technology (http://www.nfc-forum.org).
The phone has multiple security vulnerabilities in the code that parses
and displays the content of a NDEF tags and plain URI tags.

1) URI Spoofing (using plain URI tags)

Long URLs are short end by removing the end of the URL replacing it
with "…" (3 dots). This behavior can be abused for spoofing the
URL that is displayed to the user. This way an attacker can trick
a user into loading a malicious website. Also the phone does not
display the URL of the website (URL can be looked up through a menu
option).

Spoofing works using the classic @ method. Certain characters are
not allowed before the @ such as: /

Example:
http://[email protected]:6666

Will be displayed as: http://www.example.com....

2) NDEF Record Parser Crash

The NDEF Record parser crashes if the record payload length field
contains either 0xFFFFFFFF or 0xFFFFFFFE

The crash will reboot the GUI of the phone. After 4 reboots in a row
the phone will switch off completely (e.g. user constantly trying to
read the tag containing this value).


More Detailed Information:

More details, slides and tools are available here:
http://www.mulliner.org/nfc/

Security Advisories:
http://mulliner.org/security/advisories/

— END ADVISORY —


Collin R. Mulliner <[email protected]>
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