Unknown Vulnerability Affects Confluence instances, External Attackers May Create Unauthorized Admin Accounts

CVE-2023-22515
9.8CRITICAL

Key Information

Vendor
Atlassian
Status
Confluence Data Center
Confluence Server
Vendor
CVE Published:
4 October 2023

Badges

👾 Exploit Exists🔴 Public PoC🟣 EPSS 97%📰 News Worthy

Summary

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.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-22515 as being exploited and is known by the CISA as enabling ransomware campaigns.

The CISA's recommendation is: 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.

Affected Version(s)

Confluence Data Center >= 8.0.0

Confluence Data Center < 8.0.0

Confluence Data Center >= 8.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-22515
Created by Chocapikk

CVE-2023-22515
Created by ad-calcium

CVE-2023-22515-Scan
Created by ErikWynter

News Articles

favicon imageInfoSec Write-ups

Cve – InfoSec Write-ups

Read writing about Cve in InfoSec Write-ups. A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. Subscribe to our weekly newsletter for the coolest infosec updates: https://weekly...

5 months ago

favicon imageHelp Net Security

Critical Atlassian Confluence zero-day exploited by attackers (CVE-2023-22515) - Help Net Security

Atlassian has fixed a critical zero-day vulnerability (CVE-2023-22515) in Confluence Data Center and Server under active exploitation.

1 year ago

favicon imageTheCyberThrone

Atlassian Confluence Critical Vulnerability - CVE-2023-22515

Atlassian, has fixed a privilege escalation vulnerability bug in Confluence Server and Datacenter editions. The vulnerability, tracked as CVE-2023-22515, attackers have already exploited this flaw in some publicly accessible Confluence instances, enabling them to craft unauthorized Confluence admini...

1 year ago

EPSS Score

97% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit exists.

  • Risk change from: 9.8 to: 10 - (CRITICAL)

  • First article discovered by Security Affairs

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre DatabaseCISA Database18 Proof of Concept(s)4 News Article(s)

Credit

an Atlassian customer
.