Netscaler Troubleshooting (Tools, Logs, Performance)

Introduction This article provides a list of Knowledge Base resources on how to troubleshoot, setup and diagnose most common issues based on memory, CPU, license. Overview of the Issue Below list of articles will provide you an outline of logs which will help you to easily identify a possible CPU...

VulnCheck KEV: CVE-2020-8191

Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 allows reflected Cross Site Scripting XSS...

SSH Public Key - No supported authentication methods available (server sent public key)

Citrix ADC: SSH is not working...

After upgrade to 14.1 ADC GUI response is slow resulting in operation timeout with tacacs auth

After upgrading Citrix ADC to version 14.1-8.50 from version 13.1, users are facing management GUI access issue with Tacacs authentication. Almost all pages are opening very slowly and are giving error Operation timeout. Disabling RbaOnResponse resolves the issue as a workaround...

VulnCheck KEV: CVE-2023-24488

Cross site scripting vulnerability in Citrix ADC and Citrix Gateway in allows and attacker to perform cross site scripting...

Metasploit Weekly Wrap-Up

PTT for DCSync This week, community member smashery made an improvement to the windowssecretsdump module to enable it to dump domain hashes using the DCSync method after having authenticated with a Kerberos ticket. Now, if a user has a valid Kerberos ticket for a privileged account, they can run...

[NetScaler-Azure] NetScaler may RESET TCP connections randomly, RESET Code: 8201

NetScaler on Azure, you may observe that some TCP connections can be RESET by NetScaler unexpectedly, RESET code is 8201. For more information about Reset code, please see:Citrix ADC NetScaler Reset Codes reference...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Citrix Netscaler_Application_Delivery_Controller

CVE-2023-4966-POC Proof Of Concept for NetScaler CVE-2023-4966...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Citrix Netscaler_Application_Delivery_Controller

CVE-2023-4966-POC POC for Citrix NetScaler CVE-2023-4966 ---...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Citrix Netscaler_Application_Delivery_Controller

CVE-2023-4966-POC POC for Citrix NetScaler CVE-2023-4966 ---...

Citrix ADC (NetScaler) Bleed Scanner

This module scans for a vulnerability that allows a remote, unauthenticated attacker to leak memory for a target Citrix ADC server. The leaked memory is then scanned for session cookies which can be hijacked if found. Module Options msf use auxiliary/scanner/http/citrix/bleedcve20234966 msf...

NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX579459)

The remote NetScaler ADC formerly Citrix ADC or NetScaler Gateway formerly Citrix Gateway device is version 12.1, 12.1-FIPS before 12.1-55.300-FIPS, 13.0 before 13.0-92.19, 13.1 before 13.1-49.15, 13.1-FIPS before 13.1-37.164-FIPS, or 14.1 before 14.1.8.50. It is therefore affected by multiple...

OTP device test error "Failed to verify OTP from. Please ensure Citrix ADC is synced to NTP time"

OTP registered device test error "Failed to verify OTP. Please make sure Citrix ADC is synced to NTP time. "...

Exploit for Code Injection in Citrix Netscaler_Application_Delivery_Controller

Citrix ADC RCE CVE-2023-3519 Exploit Guide This document prov...

How to change NSIP's and SNIP of the Citrix ADC which is configured in HA pair

Citrix ADC 13.1 - ADC is down after changing the NSIP and removing one of the interface on the ADC and binding other interface with different VLAN configurations...

How to configure WEM load balance

This article guides you through the deployment of a Workspace Environment Management WEM server group containing two or more infrastructure servers in all active load balanced configurations. The article provides details of how to configure a Citrix ADC appliance to load balance incoming requests...

Metasploit weekly wrap-up

New module content 1 Metabase Setup Token RCE Authors: Maxwell Garrett, Shubham Shah, and h00die Type: Exploit Pull request: 18232 contributed by h00die Path: exploits/linux/http/metabasesetuptokenrce AttackerKB reference: CVE-2023-38646 Description: This adds a module for an unauthenticated RCE...

Citrix ADC nsppe buffer overflow

Added: 08/09/2023 CVE: CVE-2023-3519 Background Citrix ADC formerly NetScaler ADC is an application delivery and load balancing platform. Problem A buffer overflow vulnerability in the nsppe process in Citrix ADC allows an unauthenticated attacker to execute arbitrary commands by making a special...

Citrix ADC nsppe buffer overflow

Added: 08/09/2023 CVE: CVE-2023-3519 Background Citrix ADC formerly NetScaler ADC is an application delivery and load balancing platform. Problem A buffer overflow vulnerability in the nsppe process in Citrix ADC allows an unauthenticated attacker to execute arbitrary commands by making a special...

Citrix ADC (NetScaler) Remote Code Execution Exploit

A vulnerability exists within Citrix ADC that allows an unauthenticated attacker to trigger a stack buffer overflow of the nsppe process by making a specially crafted HTTP GET request. Successful exploitation results in remote code execution as root. This module requires Metasploit:...