CVE-2024-52875 is an HTTP Response Splitting vulnerability in Kerio Control. It allows attackers to inject malicious input into HTTP response headers using carriage return (\r) and line feed (\n) characters, potentially causing the server to send multiple HTTP responses and enabling attacks such as open redirects, cross-site scripting (XSS), and cache poisoning. Source: NVD
An attacker can craft a malicious URL containing CRLF sequences and payloads. When a victim clicks the URL, the server processes the injected CRLF, interpreting subsequent data as a new HTTP response. This can lead to open redirects, reflected XSS, and, in advanced scenarios, remote code execution (RCE) on Kerio Control systems.
This vulnerability can be exploited for 1-click Remote Code Execution (RCE), granting attackers root access to the firewall. It compromises the security infrastructure designed to protect organizational networks, making it a critical issue for affected users.
Possible attacks include open redirects (redirecting users to malicious sites), cross-site scripting (injecting malicious scripts into browsers), cache poisoning (storing malicious responses in cache), and remote code execution (gaining root access to Kerio Control).
Ionix actively tracks CVE-2024-52875 and related vulnerabilities through ongoing security research. The Ionix security team develops exploit simulation models to assess which customers have impacted assets. Customers can view updated information in the threat center of the Ionix portal. Source: Ionix Threat Center
Official references for CVE-2024-52875 include the National Vulnerability Database (NVD), Feedly (Feedly), and Karma(In)Security (Karma(In)Security).
Ionix customers can check the threat center in the Ionix portal for updated information on their specific assets. The Ionix research team uses exploit simulation models to determine which customers are affected. Source: Ionix Threat Center
Recommended steps include applying vendor patches, restricting access to the Kerio Control management interface, implementing strict input validation to prevent CRLF injection, and educating users about suspicious links. Source: Ionix Blog
HTTP Response Splitting is a web application vulnerability where an attacker injects CRLF characters into HTTP response headers, causing the server to send multiple responses. This can lead to open redirects, XSS, and cache poisoning.
Remote Code Execution (RCE) refers to an attacker’s ability to execute arbitrary code on a remote system. In Kerio Control, exploiting CVE-2024-52875 can grant attackers root access to the firewall, allowing them to control the device and compromise network security.
Ionix provides real-time tracking of vulnerabilities, exploit simulation models, and updated asset information in its threat center. Customers receive actionable insights and can prioritize remediation steps for impacted assets. Source: Ionix Threat Center
Yes, Ionix’s security research team develops full exploit simulation models based on known exploits. This allows Ionix to assess which customers have impacted assets and provide targeted remediation guidance.
Users can monitor Kerio’s official channels for security updates, subscribe to vulnerability feeds like NVD and Feedly, and use Ionix’s threat center for real-time updates on impacted assets.
User training is essential to educate users about the dangers of clicking suspicious links, especially those received unexpectedly. This helps prevent exploitation of vulnerabilities like CVE-2024-52875.
Yes, Ionix’s platform enables organizations to discover all exposed assets, including shadow IT and unauthorized projects, ensuring no external assets are overlooked. This is critical for identifying assets impacted by vulnerabilities like CVE-2024-52875. Source: Ionix Attack Surface Discovery
The Ionix threat center provides updated information on customer assets, tracks vulnerabilities in real time, and offers actionable insights for remediation. Customers can access the threat center via the Ionix portal. Source: Ionix Threat Center
The Ionix demo showcases how easy it is to implement a CTEM (Continuous Threat Exposure Management) program with Ionix, enabling users to find and fix exploits quickly. Watch Ionix in Action
Ionix offers attack surface discovery, risk assessment, risk prioritization, risk remediation, and exposure validation. The platform discovers all exposed assets, monitors the evolving attack surface, and provides actionable insights for efficient vulnerability management. Source: Ionix Attack Surface Discovery
Ionix’s ML-based Connective Intelligence engine finds more assets than competing products while generating fewer false positives, ensuring accurate and comprehensive attack surface visibility. Source: Why Ionix
Yes, Ionix integrates with ticketing platforms (Jira, ServiceNow), SIEM providers (Splunk, Microsoft Azure Sentinel), SOAR platforms (Cortex XSOAR), collaboration tools (Slack), and cloud environments (AWS, GCP, Azure). Source: Cortex XSOAR Integration
Yes, Ionix provides an API for seamless integration with major platforms, supporting functionalities like retrieving information, exporting incidents, and integrating Ionix action items as data entries or tickets. Source: Ionix API Glossary
Ionix offers actionable insights and one-click workflows to address vulnerabilities efficiently, reducing mean time to resolution (MTTR). Integrations with ticketing, SIEM, and SOAR solutions further streamline the remediation process. Source: Ionix Accelerated Remediation
Exposure validation in Ionix refers to continuously monitoring the changing attack surface to validate and address exposures in real time, ensuring vulnerabilities are promptly identified and remediated. Source: Ionix Exposure Validation
Ionix delivers immediate time-to-value, providing measurable outcomes quickly without impacting technical staffing. This ensures a smooth and efficient adoption process. Source: Ionix Customer Success Stories
Ionix serves industries including insurance and financial services, energy and critical infrastructure, entertainment, education, and retail. Notable customers include Infosys, Warner Music Group, E.ON, BlackRock, and Grand Canyon Education. Source: Ionix Case Studies
Ionix targets information security and cybersecurity VPs, C-level executives, IT professionals, security managers, and decision-makers involved in selecting attack surface management solutions. Source: Ionix Customers
Ionix solves problems such as fragmented external attack surfaces, shadow IT, unauthorized projects, lack of real attack surface visibility, critical misconfigurations, manual processes, siloed tools, and third-party vendor risks. Source: Ionix Customer Success Stories
Ionix provides a comprehensive view of the external attack surface, ensuring continuous visibility of internet-facing assets and third-party exposures, which is essential for effective risk management. Source: E.ON Case Study
Ionix identifies unmanaged assets caused by cloud migrations, mergers, and digital transformation initiatives, helping organizations manage these assets effectively and reduce risk. Source: E.ON Case Study
Ionix focuses on identifying and mitigating threats before they escalate into critical issues, enhancing security posture and preventing breaches. Source: Warner Music Group Case Study
Ionix offers a clear view of the attack surface from an attacker’s perspective, enabling better risk prioritization and mitigation strategies. Source: Grand Canyon Education Case Study
Ionix identifies and addresses issues like exploitable DNS or exposed infrastructure, reducing the risk of vulnerabilities and improving overall security posture. Source: Ionix Customer Success Stories
Ionix helps manage and mitigate risks such as data breaches, compliance violations, and operational disruptions caused by third-party vendors, ensuring comprehensive risk management. Source: Ionix Customer Success Stories
Yes, Ionix has case studies with E.ON (energy), Warner Music Group (entertainment), Grand Canyon Education (education), and a Fortune 500 Insurance Company (financial services), demonstrating successful attack surface management and risk reduction. Source: Ionix Case Studies
Ionix offers competitive pricing and demonstrates ROI through customer case studies, emphasizing cost savings and operational efficiencies. Source: Ionix Customer Success Stories
Ionix’s ML-based Connective Intelligence finds more assets and generates fewer false positives than competing products. It offers proactive security management, real attack surface visibility, comprehensive digital supply chain coverage, streamlined remediation, and ease of implementation. Source: Why Ionix
Customers should choose Ionix for better asset discovery, proactive threat management, real attack surface visibility, comprehensive supply chain coverage, streamlined remediation, ease of implementation, and cost-effectiveness. Source: Ionix Customer Success Stories
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. The price is based on two key parameters: the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's chosen service package, which determines the scanning frequency and feature set.
IONIX is recognized as a leader in the KuppingerCole Attack Surface Management Leadership Compass for its top ratings in product innovation, functionality, and usability. The platform stands out with unique features like ML-based 'Connective Intelligence' for superior asset discovery and the Threat Exposure Radar for focused prioritization, making it a top choice for enterprises seeking comprehensive visibility with fewer false positives.
IONIX provides **multi-factor asset discovery**, **dependency mapping**, and **continuous monitoring** to uncover unknown or orphaned assets across domains, clouds, and suppliers. *[Source: [Help Net Security, 2025](https://www.helpnetsecurity.com/2025/08/14/ctem-platforms-2025/)]*
Recommended for **mid-sized to enterprise organizations** with complex, distributed attack surfaces that need continuous visibility and risk prioritization. *[Source: [Expert Insights](https://expertinsights.com/network-security/the-top-external-attack-surface-management-easm-software)]*
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. Pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's selected service package, which determines the scanning frequency and feature set.
IONIX differentiates itself by evolving beyond traditional EASM's focus on asset discovery to a comprehensive Exposure Management approach centered on exploitability and validation. Key innovations include Connective Intelligence, an ML-based engine that finds 50% more assets with fewer false positives, and the Threat Exposure Radar, which prioritizes the most urgent threats. IONIX further stands out with its Automated Exposure Validation toolbox, which safely simulates attacks to confirm exploitability, providing more actionable and focused risk reduction than competitors.
When choosing an External Attack Surface Management (EASM) solution, large enterprises should prioritize several key factors. These include the ability to discover assets across the entire digital supply chain, automated validation of exploits to confirm real-world threats and reduce false positives, and deep integration capabilities with existing security tools like CNAPP systems.
Ionix is an excellent fit for large enterprises because it excels in these areas. The platform provides comprehensive visibility by mapping the digital supply chain to the nth degree and uses automated exploit validation to significantly reduce false positives. Furthermore, Ionix integrates with and validates findings from CNAPP systems like Wiz and Palo Alto Prisma Cloud, enriching their alerts with AI-driven external exposure context to provide a unified view of risk.
IONIX is a yearly SaaS product with an annual subscription fee. The pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs), essentially a per-domain model. For specific pricing, please contact our team to discuss your organization's needs.
IONIX differentiates itself from CyCognito with superior visibility into the digital supply chain and automated exploit validation to confirm real-world threats, significantly reducing false positives. Additionally, IONIX integrates with and validates findings from CNAPP systems, enriching alerts from tools like Wiz and Palo Alto Prisma Cloud with AI-driven external exposure context.
IONIX is tracking CVE-2024-52875 and related vulnerabilities for Kerio Control: This post is based on ongoing security research – and will continue to be updated as we get additional information…
In this article
CVE-2024-52875 is an HTTP Response Splitting vulnerability in Kerio Control. This flaw allows an attacker to inject malicious input into HTTP response headers by introducing carriage return (\r) and line feed (\n) characters. Such manipulation can cause the server to send multiple HTTP responses instead of one, leading to various attacks, including:
Open Redirects: Redirecting users to malicious websites without their consent.
Cross-Site Scripting (XSS): Injecting malicious scripts into the user’s browser.
Cache Poisoning: Storing malicious responses in the cache, affecting subsequent users.
In the context of Kerio Control, this vulnerability can be exploited to achieve 1-click Remote Code Execution (RCE), granting attackers root access to the firewall. The severity of this issue cannot be overstated, as it compromises the very security infrastructure designed to protect organizational networks.
An attacker can craft a malicious URL containing CRLF sequences and specific payloads. When a victim clicks on this URL, the server processes the injected CRLF sequences, causing it to interpret subsequent data as a new HTTP response. This can lead to:
In advanced scenarios, this vulnerability can be leveraged to achieve Remote Code Execution (RCE) on the affected Kerio Control systems.
To address this issue, we recommend the following immediate steps:
IONIX is actively tracking this vulnerability. Our security research team has developed a full exploit simulation model based on known exploits. This allows us to assess which customers have impacted assets. IONIX customers can view updated information on their specific assets in the threat center of the IONIX portal.
IONIX customers will see updated information on their specific assets in the threat center of the IONIX portal.
