______________________________________________________________________ -------------------------- NSOADV-2015-001 --------------------------- Jolla Phone tel URI Spoofing ______________________________________________________________________ ______________________________________________________________________ 111101111 11111 00110 00110001111 111111 01 01 1 11111011111111 11111 0 11 01 0 11 1 1 111011001 11111111101 1 11 0110111 1 1111101111 1001 0 1 10 11 0 10 11 1111111 1 111 111001 111111111 0 10 1111 0 11 11 111111111 1 1101 10 00111 0 0 11 00 0 1110 1 1011111111111 1111111 11 100 10111111 0 01 0 1 1 111110 11 1111111111111 11110000011 0111111110 0110 1110 1 0 11101111111111111011 11100 00 01111 0 10 1110 1 011111 1 111111111111111111111101 01 01110 0 10 111110 110 0 11101111111111111111101111101 111111 11 0 1111 0 1 1 1 1 111111111111111111111101 111 111110110 10 0111110 1 0 0 1111111111111111111111111 110 111 11111 1 1 111 1 10011 101111111111011111111 0 1100 111 10 110 101011110010 11111111111111111111111 11 0011100 11 10 001100 0001 111111111111111111 10 11 11110 11110 00100 00001 10 1 1111 101010001 11111111 11101 0 1011 10000 00100 11100 00001101 0 0110 111011011 0110 10001 101 11110 1011 1 10 101 000001 01 00 1010 1 11001 1 1 101 10 110101011 0 101 11110 110000011 111 ______________________________________________________________________ ______________________________________________________________________ Title: Jolla Phone tel URI Spoofing Severity: Low Advisory ID: NSOADV-2015-001 Date Reported: 2015-01-29 Release Date: 2015-03-13 Author: Nikolas Sotiriu Website: http://sotiriu.de Twitter: http://twitter.com/nsoresearch Mail: nso-research at sotiriu.de URL: http://sotiriu.de/adv/NSOADV-2015-001.txt Vendor: Jolla (https://www.jolla.com/) Affected Products: Jolla Phone Affected Versions: <= Sailfish OS 1.1.1.27 (Vaarainjärvi) Remote Exploitable: Yes Patch Status: Vendor released a patch (See Solution) Discovered by: Nikolas Sotiriu Description: ============ The Sailfish OS of the Jolla Phone contains a vulnerability that allows to spoof the phone number, passed by a tel URI through an A HREF of a website with some spaces (HTML ). This could be used to trick a victim to dial a premium-rate telephone number, for example. Proof of Concept: ================= Call Test Site http://sotiriu.de/demos/callspoof.html Solution: ========= Install Version 1.1.2.16 (Yliaavanlampi) https://together.jolla.com/question/82037/release-notes-upgrade-112- yliaavanlampi-early-access/ Disclosure Timeline: ==================== 2015-01-28: Asked for a PGP Key (security@jolla.com) 2015-01-29: Got the PGP Key 2015-01-29: Sent vulnerability information to vendor 2015-01-29: Feedback that the vendor is looking into the problem 2015-01-30: Got detailed information about the patch process and timeline 2015-02-19: Got an E-Mail that the patched version is released 2015-03-13: Release of this advisory