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Home Alerts

Atlassian Warns of Confluence Vulnerability

October 31, 2023
Reading Time: 7 mins read
in Alerts

Atlassian, a prominent software company, has issued a warning regarding a critical security vulnerability in Confluence Data Center and Server. Tracked as CVE-2023-22518, this vulnerability has been assigned a high rating of 9.1 out of 10 on the CVSS scoring system and is described as an “improper authorization vulnerability.” The concern surrounding this flaw stems from its potential to result in “significant data loss if exploited by an unauthenticated attacker.” It is worth noting that all versions of Confluence Data Center and Server are susceptible to this vulnerability, prompting a need for immediate action.

To mitigate the risk associated with this security flaw, Atlassian has provided fixes in certain versions of the software. The versions 7.19.16 or later, 8.3.4 or later, 8.4.4 or later, 8.5.3 or later, and 8.6.1 or later have received updates to address the issue.

Although Atlassian has assured users that the vulnerability does not impact confidentiality and cannot be exploited to exfiltrate instance data, specific details regarding the flaw and its potential exploitation method have not been disclosed to prevent threat actors from developing an exploit.

In response to this threat, Atlassian is urging customers to take immediate action to secure their instances. Recommendations include disconnecting instances accessible via the public internet until a patch can be applied and upgrading unsupported versions to the fixed ones. It’s important to note that Atlassian Cloud sites remain unaffected by this particular vulnerability.

While there is currently no evidence of active exploitation in the wild, previous vulnerabilities in Confluence software, such as the recently reported CVE-2023-22515, have been exploited by malicious actors, emphasizing the importance of proactive security measures to safeguard against data loss and system compromise.

Reference:
  • GHOSTPULSE haunts victims using defense evasion bag o’ tricks
Tags: AtlassianAttackersCyber AdvisoryCyber AlertCyber Alerts 2023CybersecurityOctober 2023Vulnerability
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