SAP Crystal Reports Information Disclosure

2019.07.08

Credit: Mohamed

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2019-0285

CWE: CWE-200

CVSS Base Score: 5/10

Impact Subscore: 2.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: None

Availability impact: None

# Exploit Title: [Sensitive Information Disclosure in SAP Crystal Reports]
# Date: [2019-04-10]
# Exploit Author: [Mohamed M.Fouad - From SecureMisr Company]
# Vendor Homepage: [https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=517899114]
# Version: [SAP Crystal Reports for Visual Studio, Version - 2010] (REQUIRED)
# Tested on: [Windows 10]
# CVE : [CVE-2019-0285]

POC:

1- Intercept the "Export" report http request

2- Copy the "__CRYSTALSTATE" + <crystal report user control> Viewer name parameter value. 

3- You will find a base64 value in "viewerstate" attribute. 

4- decode the value you will get database information such as: name, credentials, Internal Path disclosure and some debugging information.

See this note in RAW Version

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