A critical vulnerability in Atlassian’s Confluence Server software is now under active attack.
Disclosed last week by Atlassian, CVE-2021-26084 is a remote code execution bug that is considered a critical security risk by the vendor. The flaw, which was rated a 9.8 on the CVSS scale, is due to an injection bug in the open source Object-Graph Navigation Language (OGNL) discovered and reported by security researcher Benny Jacob through Atlassian’s bug bounty program.
Troy Mursch, chief research officer with threat intelligence vendor Bad Packets, confirmed to SearchSecurity that CVE-2021-26084 was now being targeted in the wild.
“I can confirm Bad Packets honeypots have detected mass scanning and exploit activity targeting the Atlassian Confluence RCE vulnerability CVE-2021-26084 from hosts in Russia, Hong Kong, Brazil, Poland and Romania,” Mursch said. “Multiple proof-of-concepts have been published publicly demonstrating how to exploit this vulnerability.”
Administrators are being urged to update any on-premises versions of Atlassian’s Confluence Server collaboration software as hackers have now descended on the critical security flaw. Cloud-hosted versions of Confluence Server are not vulnerable to attack, Atlassian said.
According to Atlassian, the bug normally requires the attacker to be logged into the network to exploit, but under some circumstances, servers can be remotely exploited without any authentication.
I can confirm Bad Packets honeypots have detected mass scanning and exploit activity targeting the Atlassian Confluence RCE vulnerability CVE-2021-26084 from hosts in Russia, Hong Kong, Brazil, Poland and Romania. Troy MurschChief research officer, Bad Packets
In a demonstration of the flaw, researcher Harsh Jaiswal showed how the bug could be exploited to gain remote code execution.
“From our understanding & debugging we came to this conclusion: Attributes of #tag components within Velocity template are evaluated as OGNL Expressions to convert the template into HTML,” Jaiswal wrote.
For administrators, this means that getting the flaw patched as soon as possible is imperative. In some cases, Mursch said, it may already be too late. While Bad Packets doesn’t have an estimate on the number of vulnerable servers in the wild, the sheer volume of activity against the flaw should make the update a priority.
“Organizations using the on-premises version of Confluence need to immediately apply the update provided by Atlassian and check their servers for any indicators of compromise,” said Mursch.
“Given the level of scanning of exploit activity we’ve detected so far today, any unpatched servers are at immediate risk of compromise.”
Fraud Management & Cybercrime , Fraud Risk Management , Governance & Risk Management $2 Billion for Security and IT, Rather Than $10 Billion as Originally Proposed Scott Ferguson (Ferguson_Writes) • March 11, 2021 President Joe Biden in the Oval Office (Source: Wikipedia) The $1.9 trillion economic relief package known as the American Rescue…
The Department of Justice announced Monday that it had recovered a majority of the ransom paid by Colonial Pipeline to hackers who shut down its operations last month and caused massive fuel shortages and price hikes. The DOJ said that it had recovered $2.3 million worth of bitcoin out of the $4.4 million ransom that…
Global systems integrator Wipro has acquired Melbourne-based managed services provider Ampion for an undisclosed sum. Based in Melbourne, Ampion specialises in cyber security, DevOps and quality engineering services. The company was formed last year following the merger of MSPs Revolution IT and Shelde. Wipro said adding Ampion’s offerings in engineering transformation, DevOps and security consulting…
Executive Summary Informations Name CVE-2021-25207 First vendor Publication 2021-07-23 Vendor Cve Last vendor Modification 2021-07-23 Security-Database Scoring CVSS v3 Cvss vector : N/A Overall CVSS Score NA Base Score NA Environmental Score NA impact SubScore NA Temporal Score NA Exploitabality Sub Score NA Calculate full CVSS 3.0 Vectors scores Security-Database Scoring CVSS v2 Cvss…
Ireland’s health service, the HSE, says they are refusing to pay a $20 million ransom demand to the Conti ransomware gang after the hackers encrypted computers and disrupted health care in the country. Ireland’s Health Service Executive (HSE), the country’s publicly funded healthcare system, shut down all of their IT systems on Friday after suffering a…
Microsoft says everyone can remove the password from their Microsoft account and use other methods to sign in starting today. The company rolled out the option to enterprise users earlier this year, and it plans to remove passwords from enterprise accounts completely. Rather than having to remember a password or using a password manager, you’ll…
