Vulnerability Details : CVE-2023-22515

Public exploit exists!
Used for ransomware!
Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.
Published 2023-10-04 14:15:10
Updated 2024-09-16 19:46:23
Source Atlassian
View at NVD,   CVE.org

Products affected by CVE-2023-22515

CVE-2023-22515 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
CISA description:
Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.
Notes:
https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html; https://nvd.nist.gov/vuln/detail/CVE-2023-22515
Added on 2023-10-05 Action due date 2023-10-13

Exploit prediction scoring system (EPSS) score for CVE-2023-22515

EPSS FAQ
97.34%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2023-22515

  • Atlassian Confluence Data Center and Server Authentication Bypass via Broken Access Control
    Disclosure Date: 2023-10-04
    First seen: 2023-10-23
    auxiliary/admin/http/atlassian_confluence_auth_bypass
    This module exploits a broken access control vulnerability in Atlassian Confluence servers leading to an authentication bypass. A specially crafted request can be create new admin account without authentication on the target Atlassian server. Authors: - Unknown - Em
  • Atlassian Confluence Unauthenticated Remote Code Execution
    Disclosure Date: 2023-10-04
    First seen: 2023-10-19
    exploit/multi/http/atlassian_confluence_rce_cve_2023_22515
    This module exploits an improper input validation issue in Atlassian Confluence, allowing arbitrary HTTP parameters to be translated into getter/setter sequences via the XWorks2 middleware and in turn allows for Java objects to be modified at run time. The exploit will

CVSS scores for CVE-2023-22515

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
10.0
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.9
6.0
 Atlassian
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2024-09-13
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

CWE ids for CVE-2023-22515

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

References for CVE-2023-22515

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