SB2018071302 - Multiple vulnerabilities in WAGO e!DISPLAY
Published: July 13, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2018-12981)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Unrestricted upload of file with dangerous type (CVE-ID: CVE-2018-12980)
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote authenticated attacker to bypass security restrictions.
The weakness exists due to unrestricted upload of file with dangerous type. A remote attacker can upload arbitrary files to the file system with the permissions of the web server.
3) Incorrect default permissions (CVE-ID: CVE-2018-12979)
CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote authenticated attacker to bypass security restrictions.
The weakness exists due to weak permissions. A remote attacker can abuse the unrestricted file upload in the WBM and overwrite critical files.
Remediation
Install update from vendor's website.