CVE-2013-3993 is a medium-severity vulnerability found in IBM InfoSphere BigInsights versions prior to 2.1.0.3. This vulnerability allows remote authenticated users to bypass intended file and directory restrictions, or access untrusted data or code, via crafted parameters in unspecified API calls. The CVSS score of 6.5 indicates a moderate risk level, highlighting the importance of addressing this issue to maintain data security.
Organizations utilizing affected versions of IBM InfoSphere BigInsights are at risk as this vulnerability can lead to unauthorized access to sensitive data. Attackers may leverage this vulnerability to exploit the system's functionality, leading to potential data breaches or loss of integrity. The urgency for defenders is high, as remediation is crucial to prevent unauthorized access.
The vulnerability was published on July 7, 2014, and is classified under CWE-22, which pertains to improper limitation of a pathname to a restricted directory ('Path Traversal'). Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability.
As of now, there are no known public exploits for this vulnerability. However, noting its inclusion in the Known Exploited Vulnerabilities (KEV) catalog, it is evident that there is potential for exploitation if left unaddressed. Therefore, organizations must take action to remediate this vulnerability promptly.
Vulnerability Details
The official description for CVE-2013-3993 states that it allows remote authenticated users to bypass intended file and directory restrictions, or access untrusted data or code, via crafted parameters in unspecified API calls. This vulnerability affects IBM InfoSphere BigInsights versions before 2.1.0.3 and has a CVSS score of 6.5, indicating a medium severity level.
The attack vector is classified as 'NETWORK' with low complexity, requiring low privileges and no user interaction. The impact on confidentiality is high, while integrity and availability impacts are none. This indicates that sensitive information could be accessed without affecting the system's operational capabilities.
The vulnerability's status is analyzed, and it falls under CWE-22. Organizations should take note that the affected product is no longer supported, thus increasing the urgency to disconnect the product if it is still in use.
Technical Analysis
The root cause of CVE-2013-3993 lies in improper validation of user input within API calls. This flaw allows attackers to manipulate parameters to bypass file and directory restrictions. The attack vector is through network exploitation, where an authenticated user can execute crafted requests to access unauthorized resources.
The complexity of the attack is low, requiring only basic skills to exploit the vulnerability. Given that low privileges are needed, even users with minimal access can potentially exploit this vulnerability. Notably, user interaction is not required, making it easier for an attacker to initiate the exploit by simply sending requests.
In terms of impact, the confidentiality of data is highly affected, allowing attackers to access sensitive information without appropriate permissions. However, there are no integrity or availability impacts, indicating that the system's functionality remains intact while data confidentiality is compromised.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2013-3993 is significant, particularly for organizations that rely on IBM InfoSphere BigInsights for data processing. The potential for attackers to gain unauthorized access to sensitive data poses a serious threat, especially in environments handling confidential information.
The blast radius for this vulnerability is extensive, as it impacts all versions prior to the vendor patch. Organizations using the affected version are essentially exposed to risks that could lead to data breaches, compliance violations, and reputational damage.
Given the medium severity score of 6.5 and its classification in the KEV catalog, organizations should prioritize addressing this vulnerability in their patch management cycles. The urgency for remediation is critical as failure to act exposes organizations to potential exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | Yes |
Affected Versions
All versions prior to vendor patch (2.1.0.3) of IBM InfoSphere BigInsights are affected by this vulnerability. Organizations must take immediate action to disconnect or remediate these versions to mitigate risks.
Mitigation & Remediation
To mitigate the risks associated with CVE-2013-3993, organizations should prioritize upgrading to IBM InfoSphere BigInsights version 2.1.0.3 or later. As the affected product is end-of-life, it should be disconnected from the network if still in use. Additionally, organizations should implement security best practices and controls to monitor for any unauthorized access attempts.
For further guidance on security testing and vulnerability management, organizations can refer to resources such as penetration testing services that can help identify and remediate vulnerabilities effectively.
Detection Guidance
Organizations should monitor logs for any unusual access patterns that may indicate exploitation of this vulnerability. Behavioral anomalies, such as unauthorized API calls or attempts to access restricted directories, should be investigated promptly. Additionally, network signatures associated with this vulnerability should be established to detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
CVSS 6.5 reflects a medium severity for CVE-2013-3993, emphasizing the need for organizations to engage in robust security measures. The inclusion of this vulnerability in the KEV catalog illustrates its long-term significance and potential for exploitation. Security teams should prioritize the implementation of defensive measures to protect data confidentiality and integrity.
For further insights on vulnerability management, organizations may refer to the following resources: vulnerability management program and penetration testing methodology that can aid in understanding and improving overall security posture.
Lastly, security teams should consider adopting continuous penetration testing practices to stay ahead of potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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