CVE-2022-26138
Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 19 August 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 98.17% probability · 100th percentile
- CISA KEV
- Listed 29 July 2022 · due 19 August 2022
- Weakness
- CWE-798
- Affected
- atlassian/questions for confluence
- Source
- security@atlassian.com
CISA notes
Apply updates per vendor instructions. https://confluence.atlassian.com/doc/questions-for-confluence-security-advisory-2022-07-20-1142446709.html; https://nvd.nist.gov/vuln/detail/CVE-2022-26138
References
- https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.htmlVendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-79483Issue Tracking, Patch, Vendor Advisory
- https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.htmlVendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-79483Issue Tracking, Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26138US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.