Description
In Progress® Telerik® Report Server versions prior to 2024 Q1 (10.0.24.130), a remote code execution attack is possible through an insecure deserialization vulnerability.
EPSS Score:
33%
Comprehensive Technical Analysis of EUVD-2024-17525
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in EUVD-2024-17525 affects Progress® Telerik® Report Server versions prior to 2024 Q1 (10.0.24.130). This vulnerability allows for remote code execution (RCE) through an insecure deserialization flaw. The CVSS (Common Vulnerability Scoring System) base score of 9.9 indicates a critical severity level. The scoring vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H breaks down as follows:
- Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal complexity.
- Privileges Required (PR): Low (L) - The attacker needs low-level privileges to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
- Scope (S): Changed (C) - The vulnerability affects a different security scope.
- Confidentiality (C): High (H) - The vulnerability results in a high impact on confidentiality.
- Integrity (I): High (H) - The vulnerability results in a high impact on integrity.
- Availability (A): High (H) - The vulnerability results in a high impact on availability.
The EPSS (Exploit Prediction Scoring System) score of 33 suggests a moderate likelihood of exploitation in the wild.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector for this vulnerability is through network-based exploitation. An attacker could send specially crafted data to the Telerik Report Server, which would then be deserialized in an insecure manner. This could lead to the execution of arbitrary code on the server.
Potential exploitation methods include:
- Crafted Payloads: An attacker could send a malicious payload designed to exploit the deserialization process.
- Man-in-the-Middle (MitM) Attacks: Intercepting and modifying network traffic to inject malicious data.
- Phishing: Tricking users into interacting with a malicious link or file that exploits the vulnerability.
3. Affected Systems and Software Versions
The vulnerability affects:
- Telerik Report Server versions: All versions prior to 2024 Q1 (10.0.24.130).
Organizations using these versions are at risk and should prioritize updating to the latest version to mitigate the vulnerability.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Update Software: Immediately update to Telerik Report Server version 2024 Q1 (10.0.24.130) or later.
- Network Segmentation: Isolate the Telerik Report Server from other critical systems to limit the potential impact of an exploit.
- Input Validation: Implement strict input validation and sanitization to prevent malicious data from being processed.
- Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities or attempts to exploit the vulnerability.
- Access Controls: Restrict access to the Telerik Report Server to only trusted users and systems.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on Telerik Report Server for their reporting needs. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and disruption of services. This underscores the importance of timely patch management and proactive security measures to protect against such threats.
6. Technical Details for Security Professionals
Deserialization Vulnerability:
- Deserialization is the process of converting data from a format suitable for storage or transmission back into a format suitable for use within a program.
- Insecure deserialization occurs when an application deserializes untrusted data without proper validation, leading to potential code execution.
Detection and Response:
- Intrusion Detection Systems (IDS): Configure IDS to detect unusual network traffic patterns that may indicate an exploitation attempt.
- Endpoint Detection and Response (EDR): Use EDR tools to monitor for suspicious activities on the server.
- Patch Management: Ensure that a robust patch management process is in place to quickly apply updates and patches.
References:
By addressing this vulnerability promptly and implementing the recommended mitigation strategies, organizations can significantly reduce the risk of exploitation and protect their critical assets.