SAP NetWeaver Enqueue Server version 7.4 suffers from a denial of service vulnerability.
99a16a30bd31df9bdc036bd0035a07a2d7a2e3eb036b6050b71e1fd2acb89ff1
Application: SAP NetWeaver Enqueue Server
Versions Affected: SAP NetWeaver Enqueue Server 7.4
Vendor URL: http://SAP.com
Bug: denial of service
Sent: 04.12.2015
Reported: 05.12.2015
Vendor response: 05.12.2015
Date of Public Advisory: 12.04.2016
Reference: SAP Security Note 2258784
Author: Vahagn Vardanyan (ERPScan)
Description
1. ADVISORY INFORMATION
Title: SAP NetWeaver Enqueue Server – DoS vulnerability
Advisory ID: [ERPSCAN-16-019]
Risk: high
Advisory URL: https://erpscan.com/advisories/erpscan-16-019-sap-netweaver-enqueue-server-dos-vulnerability/
Date published: 12.04.2016
Vendors contacted: SAP
2. VULNERABILITY INFORMATION
Class: denial of service
Impact: denial of service
Remotely Exploitable: Yes
Locally Exploitable: No
CVE: CVE-2016-4015
CVSS Information
CVSS Base Score v3: 7.5 / 10
CVSS Base Vector:
AV : Attack Vector (Related exploit range) Network (N)
AC : Attack Complexity (Required attack complexity) Low (L)
PR : Privileges Required (Level of privileges needed to exploit) None (N)
UI : User Interaction (Required user participation) None (N)
S : Scope (Change in scope due to impact caused to components beyond
the vulnerable component) Unchanged (U)
C : Impact to Confidentiality None (N)
I : Impact to Integrity None (N)
A : Impact to Availability High (H)
3. VULNERABILITY DESCRIPTION
Anonymous attacker can use a special request to cause a denial of
service in SAP Enqueue
4. VULNERABLE PACKAGES
SAP NetWeaver Enqueue Server 7.4
Other versions are probably affected too, but they were not checked.
5. SOLUTIONS AND WORKAROUNDS
To correct this vulnerability, install SAP Security Note 2258784
6. AUTHOR
Vahagn Vardanyan (ERPScan)
7. TECHNICAL DESCRIPTION
Enqueue Server allows an anonymous attacker to prevent legitimate
users from accessing the service, either by crashing or flooding it.
8. REPORT TIMELINE
Sent: 04.12.2015
Vendor response: 05.12.2015
Date of Public Advisory: 12.04.2016
9. REFERENCES
https://erpscan.com/advisories/erpscan-16-019-sap-netweaver-enqueue-server-dos-vulnerability/
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-4015
10. ABOUT ERPScan Research
The company’s expertise is based on the research subdivision of
ERPScan, which is engaged in vulnerability research and analysis of
critical enterprise applications. It has achieved multiple
acknowledgments from the largest software vendors like SAP, Oracle,
Microsoft, IBM, VMware, HP for discovering more than 400
vulnerabilities in their solutions (200 of them just in SAP!).
ERPScan researchers are proud to have exposed new types of
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We have highly qualified experts in staff with experience in many
different fields of security, from web applications and
mobile/embedded to reverse engineering and ICS/SCADA systems,
accumulating their experience to conduct the best SAP security
research.
11. ABOUT ERPScan
ERPScan is the most respected and credible Business Application
Security provider. Founded in 2010, the company operates globally and
enables large Oil and Gas, Financial and Retail organizations to
secure their mission-critical processes. Named as an ‘Emerging Vendor’
in Security by CRN, listed among “TOP 100 SAP Solution providers” and
distinguished by 30+ other awards, ERPScan is the leading SAP SE
partner in discovering and resolving security vulnerabilities. ERPScan
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security of their latest solutions.
ERPScan’s primary mission is to close the gap between technical and
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and Oracle ERP systems and business-critical applications from both,
cyber-attacks as well as internal fraud. Usually our clients are large
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whose requirements are to actively monitor and manage security of vast
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Phone: 650.798.5255
Twitter: @erpscan
Scoop-it: Business Application Security