CVE-2013-4069 in SPSS Collaboration
Summary
by MITRE
The Portal application in IBM SPSS Collaboration and Deployment Services 4.2.1 before 4.2.1.3 IF3 and 5.0 before FP3 allows remote attackers to read arbitrary files via an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 02/28/2018
The vulnerability identified as CVE-2013-4069 represents a critical XML External Entity (XXE) flaw within IBM SPSS Collaboration and Deployment Services portal application. This issue affects versions 4.2.1 before 4.2.1.3 IF3 and 5.0 before FP3, exposing organizations to significant security risks through improper XML parsing mechanisms. The vulnerability stems from the application's insufficient validation of external entity declarations in XML processing, creating a pathway for malicious actors to exploit the system's XML parser configuration.
The technical exploitation of this XXE vulnerability occurs when an attacker crafts malicious XML content containing external entity declarations that reference arbitrary files on the server. Through careful manipulation of entity references, an attacker can leverage the portal application's XML processing capabilities to read sensitive files from the underlying file system. This includes system configuration files, database credentials, application source code, and other potentially sensitive data that may be accessible through the application's file access mechanisms. The vulnerability specifically targets the XML parsing functionality within the portal's processing pipeline, where external entity declarations are not properly sanitized or restricted.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to escalate their attacks through data exfiltration and potential system reconnaissance. Organizations utilizing affected versions of IBM SPSS Collaboration and Deployment Services face the risk of unauthorized data access, system compromise, and potential lateral movement within their network infrastructure. The vulnerability's remote exploitability means that attackers do not require local system access or credentials to initiate the attack, making it particularly dangerous in environments where the application is exposed to untrusted networks or users.
Security professionals should note that this vulnerability aligns with CWE-611, which specifically addresses improper restriction of XML external entity reference, and maps to ATT&CK technique T1213.002 for data from information repositories. The flaw demonstrates a classic example of insufficient input validation in XML processing components, where the application fails to properly restrict or validate external entity declarations. Organizations should implement immediate mitigations including updating to patched versions of IBM SPSS Collaboration and Deployment Services, configuring XML parsers to disable external entity processing, and implementing network segmentation to limit access to affected systems. Additionally, monitoring for suspicious XML processing activities and implementing web application firewalls with XXE detection capabilities can provide additional layers of defense against exploitation attempts.