Known Exploited Vulnerability
9.8
CRITICAL
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 :

Nov. 21, 2024, 8:17 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
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.

Description :

Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

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 38 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.

ID Vendor Product Action
1 Citrix netscaler_application_delivery_controller
2 Citrix netscaler_gateway
References to Advisories, Solutions, and Tools

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

PowerShell C#

Updated: 1 month, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : Oct. 11, 2024, 6:07 a.m. This repo has been linked 28 different CVEs too.

None

Python

Updated: 5 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : June 25, 2024, 9:01 p.m. This repo has been linked 3 different CVEs too.

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 2 days, 20 hours ago
11 stars 2 fork 2 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 77 different CVEs too.

None

Updated: 1 week, 3 days ago
1 stars 0 fork 0 watcher
Born at : May 16, 2024, 2:53 p.m. This repo has been linked 48 different CVEs too.

Repository of IOCs that can be pulled into tools.

Python PowerShell YARA

Updated: 2 days, 19 hours ago
1 stars 0 fork 0 watcher
Born at : Dec. 12, 2023, 1:50 p.m. This repo has been linked 6 different CVEs too.

Stack-Overflow on Citrix

Python

Updated: 1 month, 4 weeks ago
4 stars 0 fork 0 watcher
Born at : Oct. 27, 2023, 6:39 p.m. This repo has been linked 1 different CVEs too.

Script for checking CVE-2023-3519 for Backdoors

Python

Updated: 1 year, 3 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 31, 2023, 9:10 a.m. This repo has been linked 1 different CVEs too.

Citrix ADC RCE CVE-2023-3519

Python

Updated: 3 months, 3 weeks ago
3 stars 0 fork 0 watcher
Born at : Aug. 24, 2023, 12:24 p.m. This repo has been linked 1 different CVEs too.

PoC. Severity critical.

Shell Ruby Python PHP

Updated: 1 year, 3 months ago
0 stars 1 fork 1 watcher
Born at : Aug. 10, 2023, 8:31 p.m. This repo has been linked 18 different CVEs too.

None

Shell

Updated: 4 months, 3 weeks ago
65 stars 4 fork 4 watcher
Born at : Aug. 10, 2023, 6:22 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 5 months, 2 weeks ago
2 stars 2 fork 2 watcher
Born at : Aug. 6, 2023, 11:17 p.m. This repo has been linked 1 different CVEs too.

PoC. Severity critical.

cve-2023-1671 cve-2023-27350 cve-2023-2868 cve-2023-3519 cve-2023-34960 exploit poc cve-2023-28121 cve-2023-28771 cve-2023-35885 cve-2023-38646 cve-2023-34124 citrix sonicwall cve-2023-4596 cve-2023-26469 cve-2023-23333 ivanti cve-2023-40044 cve-2023-22515

Shell Python Ruby PHP

Updated: 1 week ago
70 stars 17 fork 17 watcher
Born at : Aug. 5, 2023, 11:02 a.m. This repo has been linked 38 different CVEs too.

None

Python

Updated: 1 year, 3 months ago
1 stars 0 fork 0 watcher
Born at : Aug. 5, 2023, 1:43 a.m. This repo has been linked 1 different CVEs too.

NetScaler (Citrix ADC) CVE-2023-3519 Scanner

C#

Updated: 1 year, 4 months ago
1 stars 1 fork 1 watcher
Born at : July 21, 2023, 11:48 p.m. This repo has been linked 1 different CVEs too.

CVE-2023-3519 vuln for nuclei scanner

Updated: 1 year, 2 months ago
11 stars 1 fork 1 watcher
Born at : July 21, 2023, 10:10 p.m. This repo has been linked 1 different CVEs too.

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.

  • 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

Published Date: Nov 19, 2024 (2 weeks, 2 days ago)
  • 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

Published Date: Nov 16, 2024 (2 weeks, 5 days ago)
  • 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

Published Date: Nov 14, 2024 (3 weeks ago)
  • 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

Published Date: Nov 14, 2024 (3 weeks ago)
  • 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

Published Date: Nov 14, 2024 (3 weeks ago)
  • 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

Published Date: Nov 13, 2024 (3 weeks, 1 day ago)
  • 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

Published Date: Nov 12, 2024 (3 weeks, 1 day ago)
  • 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

Published Date: Nov 12, 2024 (3 weeks, 1 day ago)
  • 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

Published Date: Sep 06, 2024 (2 months, 4 weeks ago)
  • 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

Published Date: Sep 02, 2024 (3 months ago)
  • 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

Published Date: Aug 29, 2024 (3 months ago)
  • 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

Published Date: Aug 29, 2024 (3 months ago)
  • 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

Published Date: Aug 28, 2024 (3 months ago)
  • 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

Published Date: Aug 28, 2024 (3 months ago)
  • 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

Published Date: Aug 28, 2024 (3 months ago)
  • 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

Published Date: Jun 03, 2024 (6 months ago)

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.

  • 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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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.

96.55 }} 0.07%

score

0.99658

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability