CVE-2015-10029 in simplexrd
Summary
by MITRE • 01/09/2023
A vulnerability classified as problematic was found in kelvinmo simplexrd up to 3.1.0. This vulnerability affects unknown code of the file simplexrd/simplexrd.class.php. The manipulation leads to xml external entity reference. Upgrading to version 3.1.1 is able to address this issue. The name of the patch is 4c9f2e028523ed705b555eca2c18c64e71f1a35d. It is recommended to upgrade the affected component. VDB-217630 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 01/30/2023
The vulnerability identified as CVE-2015-10029 represents a critical xml external entity reference flaw within the kelvinmo simplexrd library version 3.1.0 and earlier. This issue resides in the simplexrd/simplexrd.class.php file where improper handling of xml input allows malicious actors to exploit external entity references. The vulnerability falls under the category of insecure xml processing, which is commonly associated with CWE-611, specifically targeting xml external entity injection vulnerabilities. The flaw enables attackers to manipulate xml data processing in ways that can lead to information disclosure, denial of service, or potentially remote code execution depending on the environment's configuration.
The technical implementation of this vulnerability occurs when the simplexrd library processes xml data without proper validation or sanitization of external entity references. Attackers can craft malicious xml payloads that reference external resources, potentially allowing them to access internal network resources, exfiltrate data, or cause the application to consume excessive resources. This type of vulnerability is particularly dangerous because it can be exploited through various attack vectors including web applications, api endpoints, or any system that processes xml data through the affected library. The vulnerability's impact extends beyond simple data processing as it can serve as a stepping stone for more sophisticated attacks within a network environment.
Operational impact of CVE-2015-10029 is significant for organizations utilizing the affected simplexrd library in their applications. Systems processing xml data through this library become vulnerable to xml external entity attacks that can compromise data integrity and confidentiality. The vulnerability creates potential for unauthorized access to internal systems and data, as well as service disruption through resource exhaustion attacks. From an att&ck framework perspective, this vulnerability aligns with techniques involving xml external entity injection and can be leveraged for initial access, persistence, and privilege escalation within compromised environments. Organizations may experience regulatory compliance issues and security audit failures due to the presence of this unpatched vulnerability.
The recommended mitigation strategy involves upgrading the affected simplexrd library to version 3.1.1 or later, which incorporates the patch identified by the commit hash 4c9f2e028523ed705b555eca2c18c64e71f1a35d. This upgrade addresses the core xml processing flaw by implementing proper input validation and entity reference handling. Additional defensive measures include implementing xml parsers with restricted external entity processing, deploying web application firewalls that can detect and block malicious xml patterns, and conducting comprehensive security testing of all xml processing components. Organizations should also consider implementing network segmentation and monitoring to detect potential exploitation attempts. The vulnerability serves as a reminder of the importance of keeping third-party libraries updated and maintaining proper security hygiene in software development practices.