U.S. Cyber Command Warns of Ongoing Assaults Exploiting Atlassian Confluence Flaw

atlassian confluence

The U.S. Cyber Command on Friday warned of ongoing mass exploitation makes an attempt within the wild focusing on a now-patched important safety vulnerability affecting Atlassian Confluence deployments that may very well be abused by unauthenticated attackers to take management of a weak system.

“Mass exploitation of Atlassian Confluence CVE-2021-26084 is ongoing and anticipated to speed up,” the Cyber Nationwide Mission Drive (CNMF) said in a tweet. The warning was additionally echoed by the U.S. Cybersecurity and Infrastructure Safety Company (CISA) and Atlassian itself in a sequence of unbiased advisories.

Unhealthy Packets noted on Twitter it “detected mass scanning and exploit exercise from hosts in Brazil, China, Hong Kong, Nepal, Romania, Russia and the U.S. focusing on Atlassian Confluence servers weak to distant code execution.”

Atlassian Confluence is a extensively well-liked web-based documentation platform that enables groups to create, collaborate, and arrange on totally different tasks, providing a typical platform to share data in company environments. It counts a number of main firms, together with Audi, Docker, GoPro, Hubspot, LinkedIn, Morningstar, NASA, The New York Instances, and Twilio, amongst its clients.

The development comes days after the Australian firm rolled out safety updates on August 25 for a OGNL (Object-Graph Navigation Language) injection flaw that, in particular situations, may very well be exploited to execute arbitrary code on a Confluence Server or Knowledge Middle occasion.

Put in another way, an adversary can leverage this weak spot to execute any command with the identical permissions because the person working the service, and worse, abuse the entry to realize elevated administrative permissions to stage additional assaults towards the host utilizing unpatched native vulnerabilities.

The flaw, which has been assigned the identifier CVE-2021-26084 and has a severity score of 9.8 out of 10 on the CVSS scoring system, impacts all variations prior to six.13.23, from model 6.14.0 earlier than 7.4.11, from model 7.5.0 earlier than 7.11.6, and from model 7.12.0 earlier than 7.12.5.

The problem has been addressed within the following variations —

  • 6.13.23
  • 7.4.11
  • 7.11.6
  • 7.12.5
  • 7.13.0

Within the days because the patches had been issued, a number of menace actors have seized the chance to capitalize on the flaw by ensnaring potential victims to mass scan weak Confluence servers and install crypto miners after a proof-of-concept (PoC) exploit was publicly released earlier this week. Rahul Maini, one of many researchers concerned, described the method of growing the CVE-2021-26084 exploit as “comparatively easier than anticipated.”

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