CVE Vulnerabilities


Improper Link Resolution Before File Access ('Link Following')

Published: Jan 02, 2009 | Modified: Aug 08, 2017
CVSS 3.x
CVSS 2.x
2.6 LOW

The SmartPoster implementation on the Nokia 6131 Near Field Communication (NFC) phone with 05.12 firmware does not properly display the URI record when the Title record contains a certain combination of space, CR (aka r), and . (dot) characters, which allows remote attackers to trick a user into loading an arbitrary URI via a crafted NDEF tag, as demonstrated by (1) an http: URI for a malicious web site, (2) a tel: URI for a premium-rate telephone number, and (3) an sms: URI that triggers purchase of a ringtone.


The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
6131_nfc Nokia 05.12 05.12

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.