Zoho WebNMS Framework 5.2/5.2 SP1 FileUploadServlet fileName path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

A vulnerability was found in Zoho WebNMS Framework 5.2/5.2 SP1. It has been declared as critical. This vulnerability affects an unknown code of the file servlets/FileUploadServlet. The manipulation of the argument fileName with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Directory traversal vulnerability in the file upload functionality in ZOHO WebNMS Framework 5.2 and 5.2 SP1 allows remote attackers to upload and execute arbitrary JSP files via a .. (dot dot) in the fileName parameter to servlets/FileUploadServlet.

The bug was discovered 08/08/2016. The weakness was presented 01/23/2017 by Pedro Ribeiro as EDB-ID 40229 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2016-6600 since 08/04/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

A public exploit has been developed by Pedro Ribeiro and been published even before and not after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 168 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11686 (WebNMS Framework Multiple Vulnerabilities).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (40229). See 95849, 95850 and 95851 for similar entries.

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 6.5
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Pedro Ribeiro
Download: 🔍

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Current Price Estimation: 🔍

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OpenVAS ID: 100891
OpenVAS Name: WebNMS 5.2 / 5.2 SP1 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: webnms_file_upload.rb
MetaSploit Name: WebNMS Framework Server Arbitrary File Upload
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
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0-Day Time: 🔍

Timelineinfo

08/04/2016 🔍
08/08/2016 +4 days 🔍
08/08/2016 +0 days 🔍
08/10/2016 +2 days 🔍
08/10/2016 +0 days 🔍
01/23/2017 +166 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
07/30/2020 +1283 days 🔍

Sourcesinfo

Advisory: EDB-ID 40229
Researcher: Pedro Ribeiro
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6600 (🔍)
SecurityFocus: 92402 - WebNMS Framework Multiple Security Vulnerabilities
OSVDB: - CVE-2016-6600 - ZOHO - WebNMS - Directory Traversal Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/24/2017 08:32
Updated: 07/30/2020 16:49
Changes: 01/24/2017 08:32 (78), 07/30/2020 16:49 (6)
Complete: 🔍

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