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Files from Jim Becher

First Active2020-11-20
Last Active2020-11-20
Barco wePresent Insecure Firmware Image
Posted Nov 20, 2020
Authored by Matthew Bergin, Jim Becher | Site korelogic.com

Barco wePresent WiPG-1600W versions 2.5.1.8, 2.5.0.25, 2.5.0.24, and 2.4.1.19 have firmware that does not perform verification of digitally signed firmware updates and is susceptible to processing and installing modified/malicious images.

tags | exploit
advisories | CVE-2020-28332
MD5 | e4383abb6fd7cd3fb13e1ebe4da07b84
Barco wePresent Global Hardcoded Root SSH Password
Posted Nov 20, 2020
Authored by Jim Becher | Site korelogic.com

Barco wePresent WiPG-1600W versions 2.5.1.8, 2.5.0.25, 2.5.0.24, and 2.4.1.19 have a hardcoded root password hash included in the firmware image.

tags | exploit, root
advisories | CVE-2020-28334
MD5 | f546a4da12e5bb23b7138a0af23f3ff1
Barco wePresent Undocumented SSH Interface
Posted Nov 20, 2020
Authored by Jim Becher | Site korelogic.com

Barco wePresent WiPG-1600W version 2.5.1.8 has an SSH daemon included in the firmware image. By default, the SSH daemon is disabled and does not start at system boot. The system initialization scripts read a device configuration file variable to see if the SSH daemon should be started. The web interface does not provide a visible capability to alter this configuration file variable. However, a malicious actor can include this variable in a POST such that the SSH daemon will be started when the device boots.

tags | exploit, web
advisories | CVE-2020-28331
MD5 | 86102878b47498e5776df9ed90a4a19a
Barco wePresent Authentication Bypass
Posted Nov 20, 2020
Authored by Jim Becher | Site korelogic.com

The Barco wePresent WiPG-1600W version 2.5.1.8 web interface does not use session cookies for tracking authenticated sessions. Instead, the web interface uses a "SEID" token that is appended to the end of URLs in GET requests. Thus the "SEID" would be exposed in web proxy logs and browser history. An attacker that is able to capture the "SEID" and originate requests from the same IP address (via a NAT device or web proxy) would be able to access the user interface of the device without having to know the credentials.

tags | exploit, web
advisories | CVE-2020-28333
MD5 | 50b164f3cff95d8cf4dd33881f7f36e0
Barco wePresent Admin Credential Exposure
Posted Nov 20, 2020
Authored by Jim Becher | Site korelogic.com

An attacker armed with hardcoded API credentials from KL-001-2020-004 (CVE-2020-28329) can issue an authenticated query to display the admin password for the main web user interface listening on port 443/tcp for Barco wePresent WiPG-1600W version 2.5.1.8.

tags | exploit, web, tcp
advisories | CVE-2020-28329, CVE-2020-28330
MD5 | 3ad24677ecaeff25f5cac17ee343f4a9
Barco wePresent Hardcoded API Credentials
Posted Nov 20, 2020
Authored by Jim Becher | Site korelogic.com

Barco wePresent device firmware includes a hardcoded API account and password that is discoverable by inspecting the firmware image. A malicious actor could use this password to access authenticated, administrative functions in the API. Versions affected include 2.5.1.8, 2.5.0.25, 2.5.0.24, and 2.4.1.19.

tags | exploit
advisories | CVE-2020-28329
MD5 | d74c6a09cbb7c6a83ef51442ad6f046a
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