CVE-2018-15811 is a high-severity vulnerability affecting DNN (DotNetNuke) versions 9.2 through 9.2.1. This vulnerability allows attackers to exploit a weak encryption algorithm used to protect input parameters. The CVSS score for this vulnerability is 7.5, indicating a high level of risk for organizations utilizing these versions.
Risk to organizations includes unauthorized access to sensitive information due to the inadequate encryption strength. Given that this vulnerability has been added to the known exploited vulnerabilities catalog (KEV), organizations should address this issue in their priority patch cycle.
Organizations should prioritize patching immediately to reduce exposure. As of now, exploitation is confirmed with the presence of known exploits in the wild. The urgency for defenders cannot be overstated, as the potential impact could be significant.
The vulnerability has been publicly disclosed, and it is crucial for affected parties to remain vigilant and responsive to any security advisories issued by the vendor.
Vulnerability Details
DNN (aka DotNetNuke) versions 9.2 through 9.2.1 utilizes a weak encryption algorithm to protect input parameters. This flaw is classified under CWE-326, which denotes insufficient encryption strength. The CVSS score of 7.5 indicates that the vulnerability can be exploited over the network with low complexity and without requiring any privileges.
The vulnerability was published on July 3, 2019, and impacts all versions prior to vendor patches. Organizations must remain aware that the potential for data exposure is significant due to the high confidentiality impact.
Technical Analysis
The root cause of CVE-2018-15811 stems from the use of a weak encryption algorithm, which puts sensitive data at risk. Attackers can exploit this vulnerability remotely, as it is accessible over the network with low complexity. No user interaction is required, which increases the likelihood of successful exploitation.
The attack vector is primarily network-based, requiring no privileges or user interaction to execute. The vulnerability impacts the confidentiality of data, allowing unauthorized access while the integrity and availability of the system remain unaffected.
Risk & Impact Analysis
In the real-world deployment, the risk associated with CVE-2018-15811 is significant, particularly for organizations that handle sensitive information. The potential blast radius is extensive, as successful exploitation could lead to unauthorized disclosure of confidential data. Given the CVSS score of 7.5, organizations should prioritize remediation in their patch cycle.
The urgency for action is underscored by the known exploitation status and the high EPS score of 0.930, placing it within the 99.78 percentile of risk. This indicates a high probability of real-world exploitation, further validating the need for immediate attention to this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
All versions of DNN (DotNetNuke) prior to the vendor patch are affected, specifically versions 9.2 through 9.2.1. Organizations using these versions should ensure immediate updates are applied to mitigate risks.
Mitigation & Remediation
To mitigate the risks associated with CVE-2018-15811, organizations must apply the latest vendor updates promptly. It is crucial for organizations to review their versions of DotNetNuke and upgrade to a patched version. If immediate patching is not possible, organizations should consider implementing workarounds such as restricting access to the affected systems and enhancing network security controls.
For more comprehensive security practices, organizations should validate remediation through penetration testing to identify similar weaknesses.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual authentication attempts and access patterns. Behavioral anomalies that deviate from normal user activity should be flagged for further investigation. Implementing network signatures that can detect unusual traffic patterns associated with this vulnerability is also recommended.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2018-15811 lies in the broader implications of inadequate encryption practices in software development. As organizations increasingly rely on digital platforms, the necessity for robust encryption methodologies becomes paramount. This vulnerability serves as a reminder of the importance of regular security assessments and updates.
Security teams should take note of the patterns represented by this vulnerability, particularly in the context of encryption weaknesses. The lessons learned from addressing this vulnerability will contribute to improving overall security postures. Organizations are encouraged to develop a proactive security strategy that includes regular audits and assessments.
For additional insights on vulnerabilities and security best practices, organizations can explore our resources on vulnerability management and penetration testing methodology for guidance on maintaining secure environments.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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