An authentication vulnerability was discovered in Jira Service Management Server and Data Center which allows an attacker to impersonate another user and gain access to a Jira Service Management instance under certain circumstances. With write access to a User Directory and outgoing email enabled on a Jira Service Management instance, an attacker could gain access to signup tokens sent to users with accounts that have never been logged into. Access to these tokens can be obtained in two cases: If the attacker is included on Jira issues or requests with these users, or If the attacker is forwarded or otherwise gains access to emails containing a “View Request” link from these users. Bot accounts are particularly susceptible to this scenario. On instances with single sign-on, external customer accounts can be affected in projects where anyone can create their own account.
This vulnerability allows for high-risk scenarios where unauthorized access could lead to sensitive data exposure and manipulation, especially concerning user accounts that have not yet been logged into. Organizations utilizing Jira Service Management must prioritize remediation efforts to safeguard against potential exploitation.
The CVSS score for this vulnerability is 9.1, categorizing it as critical. The attack vector is network-based, with low complexity and no privileges required for exploitation. This highlights the urgency for organizations to implement patches and mitigations immediately.
Risk to organizations includes unauthorized access to user data and potential account compromise. Organizations should prioritize patching immediately.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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