CVE-2025-0556 is a high-severity vulnerability affecting Progress® Telerik® Report Server, specifically in versions prior to 2025 Q1 (11.0.25.211). This vulnerability allows communication of non-sensitive information between the service agent process and the application host process over an unencrypted tunnel. As a result, this communication can be subjected to local network traffic sniffing, potentially exposing sensitive information to unauthorized individuals.
The vulnerability has a CVSS score of 8.8, indicating a high level of threat to organizations that have not yet implemented the necessary patches. The attack vector is categorized as NETWORK, with low complexity, requiring no privileges, and necessitating user interaction. This means that an attacker could exploit the vulnerability if they have access to the local network.
Given the potential risks, organizations should prioritize patching immediately. Failure to address this vulnerability may lead to unauthorized access to sensitive information and compromise the integrity and availability of services.
The vulnerability was published on February 12, 2025, and has been analyzed for potential impact and remediation strategies. It is crucial for organizations to stay informed about vulnerabilities in their software components and take proactive measures to protect against them.
In summary, CVE-2025-0556 presents a significant risk due to its high CVSS score and the nature of the vulnerability. Organizations should implement patches as soon as they are available to mitigate the risks associated with this security flaw.
Vulnerability Details
The official description of this vulnerability states: 'In Progress® Telerik® Report Server, versions prior to 2025 Q1 (11.0.25.211) when using the older .NET Framework implementation, communication of non-sensitive information between the service agent process and app host process occurs over an unencrypted tunnel, which can be subjected to local network traffic sniffing.' The vulnerability is classified under CWE-319, indicating cleartext transmission of sensitive information.
The CVSS score assigned to this vulnerability is 8.8, which is indicative of high severity. The score reflects high confidentiality, integrity, and availability impacts, meaning that exploitation could lead to significant consequences for affected organizations.
The affected product is Progress Telerik Report Server, and the vulnerability was published on February 12, 2025. Organizations that utilize this software should be aware of their risk and take appropriate action.
Technical Analysis
The root cause of CVE-2025-0556 lies in the use of an unencrypted tunnel for communication between the service agent process and the app host process. This design flaw allows attackers to sniff local network traffic, potentially leading to the exposure of sensitive information.
The attack vector is classified as NETWORK, and the attack complexity is low. No privileges are required to exploit this vulnerability, but user interaction is needed. This means that an attacker on the same network may be able to leverage the vulnerability if they can trick a user into initiating the vulnerable communication.
The confidentiality impact is high, as sensitive information can be intercepted. The integrity impact is also high, as attackers may manipulate the data being transmitted. Lastly, the availability impact is high, indicating that services may be disrupted if the communication is compromised.
Risk & Impact Analysis
The real-world risk associated with CVE-2025-0556 is substantial, especially for organizations relying on the Progress Telerik Report Server for critical operations. The use of an unencrypted tunnel for communication can enable attackers to intercept non-sensitive information, which could lead to further attacks that exploit other vulnerabilities or weaknesses within the network.
Organizations must recognize that the blast radius of this vulnerability may extend beyond the immediate affected systems, potentially compromising network integrity. The urgency for remediation is high due to the potential for exploitation in active environments.
Given the CVSS score of 8.8 and the confirmed lack of patching in many organizations, this vulnerability should be prioritized for immediate remediation efforts. Organizations should take steps to ensure that all instances of the Telerik Report Server are updated to the latest version.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Progress Telerik Report Server versions prior to 2025 Q1 (11.0.25.211) are affected by this vulnerability. Organizations running these versions are at risk and should prioritize upgrading to the latest version.
Mitigation & Remediation
Organizations should apply the available patches for Progress Telerik Report Server to mitigate this vulnerability. The recommended version to upgrade to is 2025 Q1 (11.0.25.211) or later. If an immediate patch is unavailable, organizations should implement configuration hardening by ensuring that all communications are encrypted.
Additionally, organizations should consider implementing network controls to monitor for unauthorized access attempts and to enhance overall security posture. Continuous monitoring of network traffic for anomalies may help in identifying potential exploitation attempts.
For further guidance on security testing and remediation strategies, organizations can refer to penetration testing services to identify and remediate vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of compromise related to this vulnerability. Specific log indicators may include unauthorized access attempts or unexpected traffic patterns associated with the Telerik Report Server.
Behavioral anomalies in user interactions within the application may also indicate potential exploitation attempts. Implementing network signatures to detect traffic patterns consistent with this vulnerability can enhance detection capabilities.
AppSecure Threat Intelligence Insight
CVE-2025-0556 highlights a critical area of concern for organizations using Progress Telerik Report Server. The vulnerability exemplifies the risks associated with unencrypted communications and the potential for local network traffic sniffing.
As the threat landscape continues to evolve, organizations must prioritize encryption of sensitive communications to mitigate risks. This vulnerability serves as a reminder of the importance of proactive security measures and regular vulnerability assessments.
For organizations looking to enhance their security posture, adopting a comprehensive approach to security testing is essential. Resources available from AppSecure, such as application security assessments, continuous penetration testing, and red teaming services can provide valuable insights into potential vulnerabilities and necessary remediation strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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