CVE-2005-3778 in MyBB
Summary
by MITRE
Unspecified vulnerability in MyBulletinBoard (MyBB) before 1.0 PR2 Rev 686 allows attackers to cause a denial of service via unknown vectors.
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Analysis
by VulDB Data Team • 04/30/2019
The vulnerability identified as CVE-2005-3778 affects MyBulletinBoard version 1.0 PR2 Rev 686 and earlier releases, representing a critical security flaw that enables malicious actors to execute denial of service attacks against affected systems. This unspecified vulnerability within the bulletin board software ecosystem demonstrates the inherent risks present in legacy web applications that may not have undergone comprehensive security auditing or modernization processes. The vulnerability exists in the software's core processing mechanisms, potentially allowing attackers to exploit implementation weaknesses that could result in service disruption for legitimate users.
The technical nature of this vulnerability remains unspecified in the CVE description, which is common for older vulnerabilities where detailed technical information was not fully documented at the time of discovery. However, based on the context of denial of service attacks against bulletin board systems, the flaw likely resides in input validation, resource handling, or memory management components within the MyBB application. Such vulnerabilities typically manifest through malformed data processing that causes the application to crash, consume excessive resources, or enter an unstable state that prevents normal operation. The attack vectors remain unspecified, suggesting they could involve various forms of malformed input or exploitation techniques that were not fully catalogued in the original vulnerability report.
From an operational standpoint, this vulnerability presents significant risks to organizations relying on MyBB for community forums or discussion platforms. The denial of service capability allows attackers to disrupt legitimate user access to critical communication channels, potentially affecting business operations that depend on these platforms for customer engagement or internal collaboration. The impact extends beyond simple service interruption as it can damage organizational reputation, affect user trust, and potentially create opportunities for more sophisticated attacks if the system becomes compromised. Organizations utilizing affected versions of MyBB would face the challenge of maintaining service availability while implementing remediation measures.
The vulnerability aligns with common patterns found in software security flaws classified under CWE-119 (Improper Restriction of Operations within a Single-Resource) and CWE-400 (Uncontrolled Resource Consumption) within the Common Weakness Enumeration framework. These classifications reflect the fundamental nature of denial of service vulnerabilities that exploit resource management weaknesses. From an ATT&CK framework perspective, this vulnerability would map to techniques such as T1499.004 (Endpoint Denial of Service) and T1595.001 (Network Denial of Service), representing adversary tactics that leverage software weaknesses to disrupt services. The lack of specific details in the vulnerability description suggests that this issue may have been classified as a low-priority concern initially, but its potential for causing service disruption makes it a significant security risk that requires immediate attention.
Mitigation strategies for this vulnerability involve immediate upgrading to MyBB version 1.0 PR2 Rev 686 or later, which would contain the necessary security patches and code improvements to address the underlying flaw. Organizations should implement network monitoring to detect unusual traffic patterns that might indicate denial of service attempts, and establish incident response procedures for rapid mitigation of service disruption events. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other legacy applications. Additionally, implementing rate limiting, input validation, and resource monitoring mechanisms can help reduce the impact of similar vulnerabilities while awaiting full remediation. The vulnerability underscores the importance of maintaining up-to-date software versions and implementing comprehensive security practices to protect against exploitation of known weaknesses in widely deployed applications.