SB2018030206 - Multiple vulnerabilities in Citrix NetScaler Application Delivery Controller and NetScaler Gateway



SB2018030206 - Multiple vulnerabilities in Citrix NetScaler Application Delivery Controller and NetScaler Gateway

Published: March 2, 2018

Security Bulletin ID SB2018030206
Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Path traversal (CVE-ID: CVE-2018-6810)

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to path traversal. A remote attacker can send a specially-crafted URL request containing directory traversal sequences and view arbitrary files.

2) Cross-site scripting (CVE-ID: CVE-2018-6811)

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) Privilege escalation (CVE-ID: CVE-2018-6809)

The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.

The weakness exists due to unknown reasons. A remote attacker can gain root privileges.

4) Information disclosure (CVE-ID: CVE-2018-6808)

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to unknown reasons. A remote attacker can download arbitrary files and gain access to potentially sensitive information.


5) Server-side request forgery (CVE-ID: CVE-2018-6186)

The vulnerability allows a remote authenticated attacker to perform SSRF-attack on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can gain access to the nsroot account, execute commands with root privileges on the target system and perform server-side request forgery attack.

Remediation

Install update from vendor's website.