CVE-2023-3519
Citrix NetScaler ADC and NetScaler Gateway Code In - [Actively Exploited]
Description
Unauthenticated remote code execution
INFO
Published Date :
July 19, 2023, 6:15 p.m.
Last Modified :
Feb. 13, 2025, 5:16 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467; https://nvd.nist.gov/vuln/detail/CVE-2023-3519
Public PoC/Exploit Available at Github
CVE-2023-3519 has a 43 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2023-3519
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-3519.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html | Exploit Third Party Advisory VDB Entry |
| https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 | Vendor Advisory |
| http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html | Exploit Third Party Advisory VDB Entry |
| https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
Python Shell
None
None
This is my starred repositories including the description for each tool. Makes search/filter over them easier.
None
PowerShell C#
None
Python
Latest CVEs with their Proof of Concept exploits.
Python
None
Repository of IOCs that can be pulled into tools.
Python PowerShell YARA
Stack-Overflow on Citrix
Python
Script for checking CVE-2023-3519 for Backdoors
Python
Citrix ADC RCE CVE-2023-3519
Python
PoC. Severity critical.
Shell Ruby Python PHP
None
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-3519 vulnerability anywhere in the article.
-
Cyber Security News
Citrix NetScaler ADC and Gateway Vulnerability Actively Exploited in the Wild
Cloud Software Group has issued an urgent security advisory warning customers about a critical memory overflow vulnerability in NetScaler ADC and Gateway products, which could enable denial-of-service ... Read more
-
security.nl
FBI: ransomware-aanvallen via jaren oude Citrix-kwetsbaarheden
Aanvallers maken nog altijd gebruik van jaren oude Citrix-kwetsbaarheden om organisaties met ransomware te infecteren, zo stelt de FBI. Ook oude kwetsbaarheden in firewalls van Palo Alto Networks en B ... Read more
-
Dark Reading
China's Silk Typhoon APT Shifts to IT Supply Chain Attacks
Source: Chebakalex7 via ShutterstockThe China-backed cyber-espionage group known as "Silk Typhoon" has begun targeting organizations in the IT supply chain to gain access to their downstream customers ... Read more
-
BleepingComputer
Silk Typhoon hackers now target IT supply chains to breach networks
Microsoft warns that Chinese cyber-espionage threat group 'Silk Typhoon' has shifted its tactics, now targeting remote management tools and cloud services in supply chain attacks that give them access ... Read more
-
The Register
China's Silk Typhoon, tied to US Treasury break-in, now hammers IT and govt targets
Silk Typhoon, the Chinese government crew believed to be behind the December US Treasury intrusions, has been abusing stolen API keys and cloud credentials in ongoing attacks targeting IT companies an ... Read more
-
The Hacker News
China-Linked Silk Typhoon Expands Cyber Attacks to IT Supply Chains for Initial Access
Network Security / Data Breach The China-lined threat actor behind the zero-day exploitation of security flaws in Microsoft Exchange servers in January 2021 has shifted its tactics to target the infor ... Read more
-
Help Net Security
What 2024 taught us about security vulnerabilties
From zero-day exploits to weaknesses in widely used software and hardware, the vulnerabilities uncovered last year underscore threat actors’ tactics and the critical gaps in organizational defenses. T ... Read more
-
TheCyberThrone
Chinese MirrorFace APT targets Japan
The MirrorFace Advanced Persistent Threat (APT) group, also known as Earth Kasha, has been linked to a series of cyber-attacks targeting Japan. These attacks have been ongoing since 2019 and have prim ... Read more
-
Dark Reading
Chinese APT Group Is Ransacking Japan's Secrets
Source: Birgit Korber via Alamy Stock PhotoThe National Police Agency and the National Center of Incident Readiness and Strategy for Cybersecurity warned Japanese organizations of a sophisticated Chin ... Read more
-
BleepingComputer
MirrorFace hackers targeting Japanese govt, politicians since 2019
The National Police Agency (NPA) and the Cabinet Cyber Security Center in Japan have linked a cyber-espionage campaign targeting the country to the Chinese state-backed "MirrorFace" hacking group. The ... Read more
-
Cybersecurity News
MirrorFace: Unmasking the Chinese Cyber Espionage Group Targeting Japan
On January 8, 2025, the Japanese National Police Agency (NPA) issued a critical warning regarding ongoing cyberattacks attributed to the MirrorFace group, also known as “Earth Kasha.” Active since 201 ... Read more
-
Trend Micro
Spot the Difference: Earth Kasha's New LODEINFO Campaign And The Correlation Analysis With The APT10 Umbrella
This blog is based on a presentation by the authors at Virus Bulletin 2024. Introduction LODEINFO is a malware used in attacks targeting mainly Japan since 2019. Trend Micro has been tracking the grou ... Read more
-
TheCyberThrone
Top 15 Most Exploited Vulnerabilities in 2023
In a joint cybersecurity advisory, the security agencies across the world have identified the most exploited vulnerabilities of 2023. This advisory, coauthored by the Cybersecurity and Infrastructure ... Read more
-
The Register
Five Eyes infosec agencies list 2024's most exploited software flaws
The cyber security agencies of the UK, US, Canada, Australia, and New Zealand have issued their annual list of the 15 most exploited vulnerabilities, and warned that attacks on zero-day exploits have ... Read more
-
Help Net Security
Zero-days dominate top frequently exploited vulnerabilities
A joint report by leading cybersecurity agencies from the U.S., UK, Canada, Australia, and New Zealand has identified the most commonly exploited vulnerabilities of 2023. Zero-day vulnerabilities on t ... Read more
-
Cybersecurity News
2023’s Most Exploited Vulnerabilities: A Global Cybersecurity Advisory
In a joint cybersecurity advisory, the top cybersecurity agencies from the United States, Australia, Canada, New Zealand, and the United Kingdom have identified the most exploited vulnerabilities of 2 ... Read more
-
The Cyber Express
Top 15 Exploited Cyber Vulnerabilities Revealed: Five Eyes Alliance Urges Immediate Patching
The FBI, NSA, and allied agencies within the Five Eyes intelligence network have published a list of the 15 most exploited vulnerabilities from 2023. The cybersecurity advisory, a collaborative effort ... Read more
-
BleepingComputer
FBI, CISA, and NSA reveal most exploited vulnerabilities of 2023
The FBI, the NSA, and cybersecurity authorities of the Five Eyes intelligence alliance have released today a list of the top 15 routinely exploited vulnerabilities throughout last year. A joint advis ... Read more
-
security.nl
VS publiceert overzicht van meest misbruikte kwetsbaarheden in 2023
De Amerikaanse autoriteiten hebben samen met cyberagentschappen uit Australië, Canada, Nieuw-Zeeland en het Verenigd Koninkrijk een overzicht van de meest misbruikte kwetsbaarheden in 2023 opgesteld. ... Read more
-
Cybersecurity News
CVE-2024-7591 (CVSS 10): Critical Vulnerability Discovered in Progress LoadMaster
Please enable JavaScriptProgress Software Corporation has issued a security advisory for a critical vulnerability (CVE-2024-7591) affecting its LoadMaster application delivery controller (ADC) and loa ... Read more
-
The Hacker News
RansomHub Ransomware Group Targets 210 Victims Across Critical Sectors
Threat actors linked to the RansomHub ransomware group encrypted and exfiltrated data from at least 210 victims since its inception in February 2024, the U.S. government said. The victims span various ... Read more
-
Dark Reading
Iran's 'Fox Kitten' Group Aids Ransomware Attacks on US Targets
Source: Alex Maldonado Mancilla via ShutterstockIran's state-sponsored Fox Kitten threat group is actively abetting ransomware actors in attacks against organizations in the US and other countries, th ... Read more
-
The Hacker News
U.S. Agencies Warn of Iranian Hacking Group's Ongoing Ransomware Attacks
U.S. cybersecurity and intelligence agencies have called out an Iranian hacking group for breaching multiple organizations across the country and coordinating with affiliates to deliver ransomware. Th ... Read more
-
The Cyber Express
Iranian State Hackers Act as Access Brokers for Ransomware Gangs, Target U.S. and Allies’ Critical Infrastructure
A shadowy group of Iranian cyber actors is acting as access brokers for ransomware gangs and collaborating with affiliates to target the U.S. and its allies, exploiting vulnerabilities across sectors ... Read more
-
The Register
Iran's Pioneer Kitten hits US networks via buggy Check Point, Palo Alto gear
Iranian government-backed cybercriminals have been hacking into US and foreign networks as recently as this month to steal sensitive data and deploy ransomware, and they're breaking in via vulnerable ... Read more
-
BleepingComputer
Iranian hackers work with ransomware gangs to extort breached orgs
An Iran-based hacking group known as Pioneer Kitten is breaching defense, education, finance, and healthcare organizations across the United States and working with affiliates of several ransomware op ... Read more
-
Google Cloud
Ransomware Rebounds: Extortion Threat Surges in 2023, Attackers Rely on Publicly Available and Legitimate Tools
Written by: Bavi Sadayappan, Zach Riddle, Jordan Nuce, Joshua Shilko, Jeremy Kennelly A version of this blog post was published to the Mandiant Advantage portal on April 18, 2024. Executive Summary In ... Read more
-
huntress.com
Netscaler Exploitation to Social Engineering: Mapping Convergence of Adversary Tradecraft Across Victims | Huntress
The following write-up and analysis is thanks to Matthew Brennan, Harlan Carvey, Anthony Smith, Craig Sweeney, and Joe Slowik. BackgroundHuntress periodically performs reviews of identified incidents ... Read more
The following table lists the changes that have been made to the
CVE-2023-3519 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 10, 2025
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 13, 2025
Action Type Old Value New Value Changed Description Unauthenticated remote code execution Unauthenticated remote code execution -
Modified Analysis by [email protected]
Jan. 27, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.1-65.22:*:*:*:fips:*:*:* *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html Added Reference https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 -
Modified Analysis by [email protected]
Jun. 27, 2024
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 04, 2023
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 19, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 No Types Assigned https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 Vendor Advisory Added CWE NIST CWE-94 Added CPE Configuration OR *cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.1-65.22:*:*:*:fips:*:*:* *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:* versions from (including) 12.1 up to (excluding) 12.1-55.297 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:* versions from (including) 13.1 up to (excluding) 13.1-37.159 *cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-91.13 *cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:* versions from (including) 13.1 up to (excluding) 13.1-49.13
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-3519 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-3519
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
89.60 }} -0.94%
score
0.99544
percentile