SB2021080327 - Authorization bypass in Atlassian Confluence Server
Published: August 3, 2021 Updated: October 6, 2021
Security Bulletin ID
SB2021080327
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Authorization (CVE-ID: CVE-2021-26085)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green
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.