![]() One of the initial concerns with Log4Shell was organisaitons’ ability to detect whether the vulnerable log4j component was present in any of their software products. The best way to thwart attackers is to remain diligent and consistent in remediation efforts." ![]() "The reality is that full remediation of Log4Shell is difficult to achieve given its prevalence and the fact that whenever an organisation adds new assets, it could be reintroducing the vulnerability. ![]() “In the coming days, Tenable will release an alert examining the impact of Log4Shell, in which we found that nearly three out of four organisations are still vulnerable to the flaw. "The breach of a US government agency is realistically one of the many breaches that will come to light where threat actors successfully exploit Log4Shell,” said Bob Huber, CSO at Tenable. What is the Log4Shell vulnerability? FTC threatens legal action against companies failing to patch Log4Shell Linux botnet spreads using Log4Shell flaw The US’ cyber security agency declined to confirm that all agencies had met that deadline. IT Pro asked CISA in November 2021, after the first deadline to patch the initial list of known vulnerabilities had passed, whether all federal agencies had successfully patched all flaws by the set deadline. Log4Shell’s discovery came just weeks after CISA introduced its ‘madatory patch programme’ - a list of the most commonly exploited vulnerabilities that all federal agencies had to patch by a specific deadline.ĬISA issued an emergency directive adding Log4Shell to the list of vulnerabilities that had to patched across all federal agencies on 10 December, and set a deadline for patching the flaw by 24 December. The degree to which enterprise software was vulnerable to the security flaw - the highest estimates were in the region of 90% of all applications - was a particular concern. The discovery of the Log4Shell vulnerability in December 2021 caused major unrest in the cyber security community. “The threat actors also moved laterally to the domain controller, compromised credentials, and implanted Ngrok reverse proxies.” Failure to patch? “From mid-June through mid-July 2022, CISA conducted an on-site incident response engagement and determined that the organisation was compromised as early as February 2022, by likely Iranian government-sponsored APT actors who installed XMRig crypto mining software,” the advisory read. This was then used to implant the Ngrok reverse proxy tool - often associated with malicious activity - on multiple hosts to establish persistence and proxy the attackers remote desktop protocol (RDP) connections. The attackers then moved laterally across the network and used Mimikatz to harvest credentials and create a domain administrator account.
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