Title: DALIM SOFTWARE ES Core 5.0 build 7184.1 Server-Side Request Forgery
Advisory ID: ZSL-2017-5428
Type: Local/Remote
Impact: Exposure of System Information, Exposure of Sensitive Information, System Access
Risk: (4/5)
Release Date: 09.08.2017

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.

Description

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.

Vendor

Dalim Software GmbH - 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

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

Vendor Status

[15.06.2017] Vulnerability discovered.
[27.06.2017] Vendor contacted.
[27.06.2017] Automatic reply from sales received.
===
Thank you for your inquiry, your request is very important to us.
When would be the best time within the next 24 hours to speak together to discuss your requirements in more details?
DALIM SOFTWARE team.
===
[27.06.2017] Asked vendor to provide a contact for security/development related issues.
[08.08.2017] No response from the vendor.
[09.08.2017] Public security advisory released.

PoC

dalim_es_ssrf.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://www.exploit-db.com/exploits/42439/
[2] https://cxsecurity.com/issue/WLB-2017080063
[3] https://packetstormsecurity.com/files/143693
[4] https://exchange.xforce.ibmcloud.com/vulnerabilities/130314

Changelog

[09.08.2017] - Initial release
[17.08.2017] - Added reference [1], [2], [3] and [4]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk