Security

Atlassian released security patches to fix a critical flaw in Confluence

Atlassian released patches to fix a critical flaw, tracked as CVE-2021-26084, affecting the Confluence enterprise collaboration product.

Atlassian released security patches to address a critical vulnerability, tracked as CVE-2021-26084, affecting the Confluence enterprise collaboration product.

The flaw is an OGNL injection issue that can be exploited by an authenticated attacker to execute arbitrary code on affected Confluence Server and Data Center instances.

“An OGNL injection vulnerability exists that would allow an authenticated user, and in some instances unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance. ” reads the advisory published by the company.

The issue was discovered by Benny Jacob (SnowyOwl) through the Atlassian public bug bounty program, the vulnerability received a CVSS score of 9.8.

Affected versions are:

  • version < 6.13.23
  • 6.14.0 ≤ version < 7.4.11
  • 7.5.0 ≤ version < 7.11.5
  • 7.12.0 ≤ version < 7.12.5

Fixed versions:

  • 6.13.23
  • 7.4.11
  • 7.11.6
  • 7.12.5
  • 7.13.0

The company has fixed the flaw with the release of versions 6.13.23, 7.4.11, 7.11.6, 7.12.5 and 7.13.0.

Organizations should install the security patches as soon as possible.

Follow me on Twitter: @securityaffairs and Facebook

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Pierluigi Paganini

(SecurityAffairs – hacking, Atlassian Confluence)

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Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

Published by
Pierluigi Paganini
4 years ago

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