CVE-2014-9757 in Smack XMPP API
Summary
by MITRE
The Ignite Realtime Smack XMPP API, as used in Atlassian Bamboo before 5.9.9 and 5.10.x before 5.10.0, allows remote configured XMPP servers to execute arbitrary Java code via serialized data in an XMPP message.
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Analysis
by VulDB Data Team • 07/07/2022
The vulnerability identified as CVE-2014-9757 represents a critical remote code execution flaw within the Ignite Realtime Smack XMPP API implementation in Atlassian Bamboo versions prior to 5.9.9 and 5.10.x before 5.10.0. This vulnerability stems from insufficient input validation and sanitization mechanisms within the XMPP message processing pipeline, creating an avenue for malicious actors to inject and execute arbitrary Java code on affected systems. The flaw specifically manifests when the application processes serialized data contained within XMPP messages received from configured XMPP servers, effectively transforming what should be a secure communication protocol into a potential attack vector.
The technical exploitation of this vulnerability occurs through the deserialization of untrusted data within the XMPP message handling component. When Atlassian Bamboo receives an XMPP message containing serialized Java objects, the application fails to properly validate or sanitize the incoming data before attempting to deserialize it. This deserialization process occurs within the Smack XMPP API, which is designed to handle XMPP protocol communications but lacks proper security controls to prevent malicious payload execution. The vulnerability aligns with CWE-502, which specifically addresses deserialization of untrusted data as a means for executing arbitrary code, and represents a classic example of insecure deserialization within enterprise software environments.
The operational impact of this vulnerability extends beyond simple remote code execution, as it fundamentally compromises the security posture of affected Atlassian Bamboo installations. An attacker who can configure or influence the XMPP server settings or intercept XMPP communications could potentially gain full control over the affected system, including the ability to escalate privileges, access sensitive build artifacts, steal credentials, or deploy additional malicious payloads. The vulnerability affects continuous integration and deployment environments where Bamboo is used for automated build processes, potentially allowing attackers to compromise the integrity of software releases and access confidential source code repositories. This threat is particularly concerning in enterprise environments where Bamboo systems often serve as critical infrastructure components for software development and deployment workflows.
Organizations affected by this vulnerability should implement immediate mitigations including upgrading to Atlassian Bamboo versions 5.9.9 or 5.10.0 and later, which contain the necessary patches to address the deserialization flaw. Additionally, network segmentation should be implemented to restrict access to XMPP server configurations and communications, while monitoring should be enhanced to detect anomalous XMPP traffic patterns. The mitigation strategy should also include disabling XMPP functionality if it is not required for business operations, as recommended in the ATT&CK framework's defense-in-depth principles. Security teams should conduct thorough vulnerability assessments to identify any potential exploitation attempts and implement proper input validation controls at all communication interfaces. The vulnerability serves as a reminder of the critical importance of secure deserialization practices in enterprise software development and the necessity of implementing robust security controls throughout the software development lifecycle to prevent similar issues from occurring in the future.