Advantech WebAccess Authentication Bypass
critical Nessus Plugin ID 96875
Language:
New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Synopsis
The remote host is running a web application that is affected by an authentication bypass vulnerability.Description
The Advantech WebAccess web server running on the remote host is affected by an authentication bypass vulnerability in the WaExlViewer component due to a failure to properly manage authentication. An unauthenticated, remote attacker can exploit this, via a POST request with specially crafted parameters, to bypass intended restrictions, allowing the attacker to access restricted pages, upload template files, and delete existing templates.Solution
Contact the vendor for a solution.See Also
https://www.tenable.com/security/research/tra-2017-04
Plugin Details
Severity: Critical
ID: 96875
File Name: scada_advantech_webaccess_cve-2017-5152.nbin
Version: 1.65
Type: remote
Family: SCADA
Published: 1/30/2017
Updated: 12/20/2021
Dependencies: scada_advantech_webaccess_detect.nbin
Risk Information
CVSS Score Source: CVE-2017-5152
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Temporal Vector: E:POC/RL:OF/RC:C
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:advantech:webaccess
Required KB Items: www/scada_advantech_webaccess
Exploit Available: true
Exploit Ease: Exploits are available
Exploited by Nessus: true
Patch Publication Date: 1/12/2017
Vulnerability Publication Date: 1/12/2017
Reference Information
CVE: CVE-2017-5152
BID: 95410