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Although Shellshock’s immediate impact may not have matched that of other notorious cyber incidents, its implications continue to pose significant challenges, according to the authors of a recent report. A notable instance of this issue was highlighted in 2019 when Talos uncovered a global espionage initiative known as “Sea Turtle.” This campaign involved the manipulation of DNS records, allowing adversaries to infiltrate sensitive systems, with Shellshock being one of several vulnerabilities leveraged for initial access.
“While documented instances of state-sponsored cyber actors exploiting Shellshock are scarce, it is highly probable that more advanced threat actors have made attempts to use this vulnerability,” the report asserts. Significant groups known to target critical software vulnerabilities—such as the Russian group APT28 and North Korea’s Lazarus Group—may utilize Shellshock as part of their broader strategies for espionage and attacks, the authors contend.
Mitigating the Threats
In response to these ongoing risks, Talos has provided a set of ten essential recommendations aimed at enhancing the security of network devices:
Source
www.csoonline.com