CVE-2017-10067 in Java SE
Summary
by MITRE
Vulnerability in the Java SE component of Oracle Java SE (subcomponent: Security). Supported versions that are affected are Java SE: 6u151, 7u141 and 8u131. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Java SE. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 01/03/2021
This vulnerability resides within the Java SE security subsystem and represents a significant weakness that can be exploited by unauthenticated remote attackers. The flaw affects specific versions of Oracle Java SE including 6u151, 7u141, and 8u131, making it a persistent threat across multiple Java release lines. The vulnerability operates through multiple network protocols and requires minimal attacker privileges to initiate exploitation attempts. The CVSS 3.0 scoring of 7.5 indicates a high-severity risk with impacts spanning confidentiality, integrity, and availability. The attack vector is classified as network-based with high complexity and requires human interaction, suggesting that successful exploitation typically involves social engineering or user engagement with malicious content. This vulnerability specifically targets Java deployments in client environments where sandboxed applications execute untrusted code, creating a dangerous attack surface that can be leveraged for complete system compromise.
The technical nature of this vulnerability stems from weaknesses in Java's security model, particularly in how it handles sandboxed execution environments. When Java Web Start applications or applets load untrusted code from the internet, the security boundaries can be bypassed through this flaw. The vulnerability demonstrates characteristics consistent with CWE-254, which addresses security weaknesses related to inadequate sandboxing mechanisms. Attackers can exploit this weakness to execute arbitrary code within the Java runtime environment, potentially leading to complete system takeover. The requirement for human interaction indicates that this vulnerability likely involves user interface elements or prompts that must be interacted with, making it particularly dangerous in phishing scenarios where users might be tricked into executing malicious code. The attack scenario typically involves a user visiting a malicious website or downloading a compromised Java application that triggers the vulnerability.
The operational impact of this vulnerability extends beyond simple data compromise, as it can result in full system takeover and persistent access to affected systems. This type of vulnerability is particularly concerning in enterprise environments where Java applets or Web Start applications are still in use, as it can provide attackers with a foothold for further reconnaissance and lateral movement. The security implications are compounded by the fact that this vulnerability affects client-side deployments where users may not be security-aware and could inadvertently trigger exploitation through normal browsing activities. Organizations running affected Java versions face significant risk of data breaches, system compromise, and potential lateral movement within their networks. The vulnerability's applicability to sandboxed environments means that even when proper security measures are in place, the presence of vulnerable Java components can undermine overall security posture. This aligns with ATT&CK technique T1203, which involves gaining access to systems through user interaction with malicious content, making it particularly dangerous in environments where users regularly interact with internet-based applications.
Mitigation strategies should focus on immediate remediation through patching affected Java installations to the latest supported versions. Organizations must conduct comprehensive inventory assessments to identify all systems running vulnerable Java versions, particularly those in client environments where sandboxed applications operate. Disabling Java applets and Web Start functionality in browsers provides an additional layer of protection while patches are deployed. Network segmentation and monitoring can help detect exploitation attempts, though the human interaction requirement means that user education becomes critical. Security teams should implement application whitelisting policies to prevent execution of untrusted Java code, and consider disabling Java entirely in environments where it is not strictly required. Regular security assessments should verify that Java installations are properly configured and that sandboxing mechanisms are functioning as intended. The vulnerability's classification as a high-severity issue warrants immediate attention and remediation efforts, as the potential for system compromise makes it a critical security concern for any organization relying on Java-based applications.