Overview
Recently, NSFOCUS CERT found that Atlassian officially fixed a Jira Service Management Server and Data Center authentication bypass vulnerability (CVE-2023-22501). When write access to user directories and outgoing emails is enabled on a Jira Service Management instance, an unauthenticated remote attacker can gain access to Jira Service Management by impersonating users who have never logged in to their accounts by obtaining registration credentials Instance access rights. Affected users are requested to take protective measures as soon as possible.
Reference link:
Scope of Impact
Affected version
- Jira Service Management Server and Data Center 5.3.0
- Jira Service Management Server and Data Center 5.3.1
- Jira Service Management Server and Data Center 5.3.2
- Jira Service Management Server and Data Center 5.4.0
- Jira Service Management Server and Data Center 5.4.1
- Jira Service Management Server and Data Center 5.5.0
Unaffected version
- Jira Service Management Server and Data Center >= 5.3.3
- Jira Service Management Server and Data Center >= 5.4.2
- Jira Service Management Server and Data Center >= 5.5.1
- Jira Service Management Server and Data Center >= 5.6.0
Note: If the user’s Jira site is accessed through the atlassian.net domain and the site is hosted by Atlassian, it will not be affected by this vulnerability.
Mitigation
Official upgrade
At present, the official has fixed the vulnerability in the latest version. Please upgrade the version as soon as possible. The official download link is as follows:
https://www.atlassian.com/software/jira/service-management/download-archives
Temporary mitigation
If the relevant users cannot perform the upgrade operation temporarily, they can manually upgrade to a specific version of the servicedesk-variable-substitution-plugin JAR file as a temporary solution. The specific steps are as follows:
1. Refer to the table below to download the corresponding version of the JAR file.
2. Stop the Jira service
3. Copy the JAR file to the Jira home directory:
Server:
<Jira_Home>/plugins/installed-plugins
Data Center:
<Jira_Shared>/plugins/installed-plugins
4. Start the Jira service
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.
NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).
A wholly owned subsidiary of NSFOCUS Technologies Group Co., Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.
