SB2021021705 - Multiple vulnerabilities in Advantech WebAccess/SCADA

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Main Vulnerability Database SB2021021705

SB2021021705 - Multiple vulnerabilities in Advantech WebAccess/SCADA

Published: February 17, 2021

Security Bulletin ID SB2021021705
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 17% Low 83%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Incorrect default permissions (CVE-ID: CVE-2020-13551)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions within the "PostgreSQL" executable. A local user with access to the system can view contents of files and directories or modify them.


2) Incorrect default permissions (CVE-ID: CVE-2020-13552)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions within the "WebAccessMongoDB", "SaaS-Composer_keep-alive", "Dashboard", "WISE-PaaS_SaaS-Composer" and "InfluxDB" executables. A local user with access to the system can view contents of files and directories or modify them.


3) Incorrect default permissions (CVE-ID: CVE-2020-13553)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions within the Node.js script source. A local user with access to the system can view contents of files and directories or modify them.


4) Incorrect default permissions (CVE-ID: CVE-2020-13554)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions within the webvrpcs Run Key. A local user with access to the system can view contents of files and directories or modify them.


5) Incorrect default permissions (CVE-ID: CVE-2020-13555)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions within the COM Server Application. A local user with access to the system can view contents of files and directories or modify them.


6) Path traversal (CVE-ID: CVE-2020-13550)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the installation functionality. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.


Remediation

Install update from vendor's website.

References