CVE-2023-3519: Unauth RCE in Unknown Product
CVE-2023-3519 Published on July 19, 2023
Unauthenticated remote code execution
Known Exploited Vulnerability
This Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.
The following remediation steps are recommended / required by August 9, 2023: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2023-3519 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Code Injection Vulnerability?
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2023-3519 has been classified to as a Code Injection vulnerability or weakness.
Products Associated with CVE-2023-3519
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Affected Versions
Citrix NetScaler ADC:- Version 13.1 and below 49.13 is affected.
- Version 13.0 and below 91.13 is affected.
- Version 13.1-FIPS and below 37.159 is affected.
- Version 12.1-FIPS and below 55.297 is affected.
- Version 12.1-NDcPP and below 55.297 is affected.
- Version 13.1 and below 49.13 is affected.
- Version 13.0 and below 91.13 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.