CVE-2017-7686 in Ignite
Summary
by MITRE
Apache Ignite 1.0.0-RC3 to 2.0 uses an update notifier component to update the users about new project releases that include additional functionality, bug fixes and performance improvements. To do that the component communicates to an external PHP server (http://ignite.run) where it needs to send some system properties like Apache Ignite or Java version. Some of the properties might contain user sensitive information.
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Analysis
by VulDB Data Team • 12/30/2020
The vulnerability described in CVE-2017-7686 resides within Apache Ignite's update notifier component, which represents a significant security oversight in the software's design architecture. This component, intended to provide users with information about new releases, creates an unintended communication channel that exposes sensitive system information to external servers. The flaw exists in versions ranging from 1.0.0-RC3 through 2.0, indicating a prolonged period of exposure that allowed attackers to potentially exploit this functionality across multiple releases. The update notifier operates by transmitting system properties to an external PHP server located at http://ignite.run, creating a persistent attack surface that extends beyond the local network boundaries of the Ignite deployment.
The technical implementation of this vulnerability involves the transmission of system properties without adequate sanitization or security controls, allowing potentially sensitive information to be inadvertently exposed during the update notification process. These system properties include Apache Ignite version information, Java version details, and other environmental variables that may contain user-specific data or organizational information. The flaw constitutes a violation of the principle of least privilege and demonstrates poor information hygiene practices within the software's communication protocols. From a cybersecurity perspective, this represents a classic case of insecure communication patterns where internal system metadata is transmitted without proper authorization or encryption mechanisms, making it susceptible to interception or misuse by malicious actors who might be monitoring the external server.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates opportunities for attackers to gather intelligence about target systems and potentially identify additional attack vectors. The exposure of Apache Ignite and Java version information allows threat actors to correlate this data with known vulnerabilities specific to those versions, enabling more targeted exploitation attempts. Organizations running affected versions of Apache Ignite may unknowingly provide attackers with valuable reconnaissance data that could be used to craft more sophisticated attacks against their infrastructure. The vulnerability also violates fundamental security principles related to data minimization and privacy protection, as users have no control over the information being transmitted to the external server without explicit consent or configuration options.
Mitigation strategies for this vulnerability should focus on disabling or configuring the update notifier component to prevent automatic communication with external servers. Administrators should review the software configuration options to ensure that the update notification functionality is either completely disabled or properly secured with appropriate network controls. Network segmentation and firewall rules can be implemented to block outbound connections to the external update server, while also monitoring for any unauthorized communications that might indicate exploitation attempts. From a compliance perspective, this vulnerability aligns with CWE-200 (Information Exposure) and could be categorized under ATT&CK technique T1082 (System Information Discovery) when exploited by adversaries. Organizations should also consider implementing network monitoring solutions to detect and alert on unusual outbound communications that might indicate this vulnerability being actively exploited, while maintaining detailed logging of all system property transmissions for forensic analysis purposes.