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US and Japanese authorities warn that a China-linked APT BlackTech planted backdoor in Cisco router firmware to hack the businesses in both countries. The state-sponsored hackers was observed using a custom firmware backdoor which was enabled and disabled by sending specially crafted TCP or UDP packets to the devices.
For computer systems that have no other time reference, being thrown back in time can cause several security issues. From the perspective of incident handling and incident response, well-synchronized time across systems facilitates log analysis, forensic activities and correlation of events. Even worse is getting shut out.
A useful exercise in that regard is to try to foresee the future trends and significant events that might be coming in the near future. This story also raises questions about whether attackers who have breached telecommunication companies would also be able to leverage these legal interception systems.
This unfortunate turn of events shows how adversaries can quickly sneak into a system and exploit vulnerabilities to escalate privileges and compromise the whole network. Ensure inactive accounts are disabled uniformly across the Active Directory, MFA systems etc. Security Best Practices. Vigilance is Required.
Automated patch management can help prevent security breaches by automatically identifying, downloading, testing, and delivering software and firmware updates to devices and applications through the use of specialized software tools. Software updates are critical for keeping a system’s integrity and security intact.
Vulnerabilities can be found in various parts of a system, from low-level device firmware to the operating system, all the way through to software applications running on the device,” said Jeremy Linden, senior director of product management at Asimily.
Attackers target certain administrative API functions on these devices using specially crafted input. The fix: ASUS released firmware updates to address the vulnerabilities. Patch and Update: Keeping software, operating systems, and apps up to date will limit vulnerabilities that threat actors may try to exploit.
The equivalent of NO_SMT can be forced on system-wide at the firmware level, by setting NVRAM variable SMTDisable to %01 , as described in Apple support article HT210108. Unlike NO_SMT , SEGCHK / TECS has no firmware-level equivalent, nor can it be disabled after boot. Why you probably shouldn’t use NO_SMT.
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