CVE-2015-8346 in Redmine
Summary
by MITRE
app/views/timelog/_form.html.erb in Redmine before 2.6.8, 3.0.x before 3.0.6, and 3.1.x before 3.1.2 allows remote attackers to obtain sensitive information about subjects of issues by viewing the time logging form.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 07/13/2022
The vulnerability identified as CVE-2015-8346 affects Redmine versions prior to 2.6.8, 3.0.6, and 3.1.2, specifically within the time logging form component located at app/views/timelog/_form.html.erb. This issue represents a sensitive data exposure vulnerability that allows remote attackers to access information about issue subjects through the time logging interface. The flaw stems from insufficient access controls and input validation mechanisms within the time tracking form rendering process, creating an information disclosure scenario where unauthorized users can potentially discover details about project issues they should not have access to.
The technical implementation of this vulnerability occurs in the view layer of the Redmine application where the time logging form is rendered. When users access the time logging interface, the application fails to properly validate whether the requesting user has appropriate permissions to view the specific issue subjects referenced in the time logging form. This weakness enables attackers to craft requests that bypass normal access controls, allowing them to obtain metadata about issues including subject titles, project associations, and potentially other identifying information. The vulnerability is classified as an information disclosure issue that falls under CWE-200, which encompasses weaknesses that can lead to unauthorized information disclosure.
From an operational perspective, this vulnerability poses significant risks to organizations using Redmine for project management and issue tracking. Attackers could potentially gather intelligence about ongoing projects, identify sensitive issues, and understand project timelines and resource allocation patterns. The impact extends beyond simple information disclosure as it could enable more sophisticated attacks including social engineering attempts, targeted exploitation of project-specific vulnerabilities, or strategic planning for further unauthorized access attempts. This type of vulnerability aligns with ATT&CK technique T1082, which involves discovery of system information, and T1566, which covers credential access through social engineering or information gathering.
Organizations should immediately implement mitigations including updating to the patched versions of Redmine where this vulnerability has been addressed. The remediation process involves applying the official security patches released by the Redmine development team, which typically include enhanced access control validation within the time logging form rendering process. Additionally, administrators should review and enforce proper access controls, implement network segmentation, and monitor for suspicious access patterns to the time logging components. The vulnerability demonstrates the importance of proper input validation and access control implementation in web applications, particularly in areas where user interfaces display potentially sensitive information. Organizations should also consider implementing additional monitoring and logging around time tracking activities to detect and respond to potential exploitation attempts.