CVE-2019-15005 in Troubleshooting
Summary
by MITRE
The Atlassian Troubleshooting and Support Tools plugin prior to version 1.17.2 allows an unprivileged user to initiate periodic log scans and send the results to a user-specified email address due to a missing authorization check. The email message may contain configuration information about the application that the plugin is installed into. A vulnerable version of the plugin is included with Bitbucket Server / Data Center before 6.6.0, Confluence Server / Data Center before 7.0.1, Jira Server / Data Center before 8.3.2, Crowd / Crowd Data Center before 3.6.0, Fisheye before 4.7.2, Crucible before 4.7.2, and Bamboo before 6.10.2.
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Analysis
by VulDB Data Team • 02/05/2024
The vulnerability described in CVE-2019-15005 represents a critical authorization bypass flaw within Atlassian's Troubleshooting and Support Tools plugin ecosystem. This issue affects multiple core Atlassian products including Bitbucket Server, Confluence Server, Jira Server, Crowd, Fisheye, Crucible, and Bamboo across their respective server and data center deployments. The flaw resides in the plugin's implementation where it fails to properly validate user permissions before executing sensitive operations, specifically allowing unauthenticated or unauthorized users to trigger periodic log scanning functions. This missing authorization check creates a pathway for malicious actors to exploit the system's diagnostic capabilities for unauthorized data collection and exfiltration.
The technical execution of this vulnerability involves an attacker leveraging the plugin's legitimate email reporting functionality to harvest sensitive configuration data from the target application. When an unprivileged user initiates a log scan operation, the system processes the request without verifying the user's administrative privileges or authorization level. This oversight enables the attacker to specify any email address as the destination for the collected log data, potentially exposing critical system information including database connection strings, application configurations, user access controls, and other sensitive operational details. The vulnerability specifically impacts versions prior to the patched releases, where the plugin's access controls were insufficient to prevent unauthorized usage of its reporting features.
The operational impact of this vulnerability extends beyond simple information disclosure, as the collected configuration data could provide attackers with crucial insights for subsequent exploitation attempts. The compromised information may include system architecture details, database credentials, user management configurations, and other sensitive parameters that could facilitate privilege escalation or lateral movement within the affected environment. According to CWE-863, this vulnerability maps to "Incorrect Authorization" where the system fails to properly enforce access control policies, making it particularly dangerous in enterprise environments where multiple users interact with critical infrastructure. The attack pattern aligns with ATT&CK technique T1082 for System Information Discovery, as attackers can gather detailed system configuration data without proper authorization.
Organizations running vulnerable versions of Atlassian products face significant security risks from this vulnerability, as it essentially allows any user to become a passive data collector for system internals. The affected products include Bitbucket Server/DC before 6.6.0, Confluence Server/DC before 7.0.1, Jira Server/DC before 8.3.2, Crowd/DC before 3.6.0, Fisheye before 4.7.2, Crucible before 4.7.2, and Bamboo before 6.10.2, representing a substantial portion of Atlassian's server ecosystem. The risk assessment indicates that this vulnerability could be exploited by both internal and external threat actors, potentially leading to more sophisticated attacks including credential harvesting, system reconnaissance, and privilege escalation attempts. Security teams should prioritize immediate patching of affected systems and implement network monitoring to detect unauthorized log scanning activities. The remediation process requires updating to the patched plugin versions while also conducting thorough security reviews of existing configurations to ensure no unauthorized access has occurred during the vulnerability window.