This High severity File Inclusion vulnerability was introduced in versions 5.15.2, 5.16.0, 5.17.0, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.1 of Jira Service Management Data Center.

This File Inclusion vulnerability, with a CVSS Score of 8.2 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N allows an unauthenticated attacker to get the application to display the contents of a local file, or execute a different files already stored locally on the server which has high impact to confidentiality, low impact to integrity, no impact to availability, and requires user interaction.

Atlassian recommends that Jira Service Management Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

• Jira Service Management Data Center 10.3: Upgrade to a release greater than or equal to 10.3.18

• Jira Service Management Data Center 11.3: Upgrade to a release greater than or equal to 11.3.3

See the release notes (https://confluence.atlassian.com/servicemanagement/jira-service-management-release-notes-780083086.html). You can download the latest version of Jira Service Management Data Center from the download center (https://www.atlassian.com/software/jira/service-management/download-archives).

The National Vulnerability Database provides the following description for this vulnerability: node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.