SB2021080327 - Authorization bypass in Atlassian Confluence Server



SB2021080327 - Authorization bypass in Atlassian Confluence Server

Published: August 3, 2021 Updated: October 6, 2021

Security Bulletin ID SB2021080327
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Missing Authorization (CVE-ID: CVE-2021-26085)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to missing authorization in the /s/ endpoint. A remote non-authenticated attacker can send a specially crafted HTTP request to the application and view contents of arbitrary files on the system.


Remediation

Install update from vendor's website.