Huawei eNSP v1 - Buffer Overflow (DoS) Vulnerability

Document Title:
===============
Huawei eNSP v1 - Buffer Overflow (DoS) Vulnerability 


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2132

Security ID: huawei-sa-20180309-01-ensp

https://nvd.nist.gov/vuln/detail/CVE-2017-17321
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17321

Acknowledgements: https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180309-01-ensp-en

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-17321

CVE-ID:
=======
CVE-2017-17321


Release Date:
=============
2018-07-12


Vulnerability Laboratory ID (VL-ID):
====================================
2132


Common Vulnerability Scoring System:
====================================
3.3


Vulnerability Class:
====================
Buffer Overflow


Current Estimated Price:
========================
500€ - 1.000€


Product & Service Introduction:
===============================
Enterprise Network Simulation Platform (eNSP) is a free, scalable, and graphic network simulation platform developed by Huawei.
Huawei eNSP is a management and support software as service.

(Copy of the Homepage: https://support.huawei.com/enterprise/en/network-management/ensp-pid-9017384 )


Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered a buffer overflow causing a denial of service in the official Huawei eNSP v1.


Vulnerability Disclosure Timeline:
==================================
2018-07-13: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
Huawei
Product: eNSP v100R002C00B510 v100R002C00B500

Huawei
Product: eNSP V100R002C00B390 V100R002C00B380 V100R002C00B370 V100R002C00B

Huawei
Product: eNSP V100R002C00B210 V100R002C00B200

Huawei
Product: eNSP V100R002C00B120 V100R002C00B110 V100R002C00B100


Exploitation Technique:
=======================
Local


Severity Level:
===============
Low


Authentication Type:
====================
Restricted Authentication (Guest Privileges)


User Interaction:
=================
No User Interaction


Disclosure Type:
================
Independent Security Research


Technical Details & Description:
================================
A buffer overflow causing a denial of service vulnerability has been discovered in the official Huawei eNSP v1.
The vulnerability allows to an attacker to crash or shutdown the software process by unexpected behavior.

Huawei eNSP is vulnerable to a buffer overflow resulting in a denial of service, caused by improper validation of 
specific command line parameter. A local authenticated attacker could exploit the vulnerability to cause the software 
process to become abnormal with unexpected behavior and unhandled errors by sending a special crafted paket requests.


Proof of Concept (PoC):
=======================
https://www.vulnerability-lab.com/resources/pictures/2132/huawei_ensp.jpg


Solution - Fix & Patch:
=======================
Huawei has released software updates to fix this security vulnerability. Customers of the product should contact Huawei 
TAC (Huawei Technical Assistance Center) to request the upgrades contents. This advisory is available at the following 
link: http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180309-01-ensp-en


Security Risk:
==============
The security risk of the buffer overflow causing a denial of service and unhandled unexpected errors in the huawei ensp v1 is estimated as medium.


Credits & Authors:
==================
S.AbenMassaoud [[email protected]] - https://www.vulnerability-lab.com/show.php?user=S.AbenMassaoud


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=========================
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