SB2018060605 - Multiple vulnerabilities in QNAP Proxy Server

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Main Vulnerability Database SB2018060605

SB2018060605 - Multiple vulnerabilities in QNAP Proxy Server

Published: June 6, 2018 Updated: June 6, 2018

Security Bulletin ID SB2018060605
CSH Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Cross-site request forgery (CVE-ID: CVE-2017-7635)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

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


The vulnerability allows a remote attacker to perform CSRF attack.

The weakness exists due to insufficient CSRF protections. A remote attacker can create a specially crafted HTML page or URL, trick the victim into visiting it, gain access to the system and perform arbitrary actions.

2) Cross-site scripting (CVE-ID: CVE-2017-7636)

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:U/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.


3) OS command execution (CVE-ID: CVE-2017-7637)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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


The vulnerability allows a remote attacker to execute shell commands on the target system.

The weakness exists due to incorrect processing of the user’s input data in the certain parameter. A remote attacker can inject and execute arbitrary shell commands with root privileges.

Successful exploitation of the vulnerability may result in system compromise.


4) Authentication bypass (CVE-ID: CVE-2017-7639)

CWE-ID: CWE-287 - Improper Authentication

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


The vulnerability allows a remote attacker to bypass authentication on the target system.

The weakness exists due to improper authentication of requests. A remote attacker can bypass security restrictions and change the settings of Proxy Server.

Remediation

Install update from vendor's website.

References