Chinese Hackers Strike Again: BeyondTrust & Salt Typhoon Breaches Expose Critical U.S. Infrastructure

Forecast: Cyber conditions are turbulent with two major Chinese state-sponsored storms impacting U.S. infrastructure, with aftershocks expected into mid-January. ‍ In today's episode of Storm Watch, we cover two major cybersecurity incidents that have significantly impacted U.S. infrastructure. The BeyondTrust breach, initially discovered in early December 2024, involved a compromised Remote Support SaaS API key that allowed attackers to reset passwords and access workstations remotely. The Treasury Department was notably affected, with attackers accessing unclassified documents in the Office of Financial Research and Office of Foreign Assets Control. The incident exposed critical vulnerabilities, including a severe command injection flaw with a CVSS score of 9.8, and over 13,500 BeyondTrust instances remain exposed online. The conversation then shifts to the extensive telecommunications breaches known as the Salt Typhoon campaign, where Chinese state actors successfully infiltrated nine major U.S. telecom companies. This sophisticated espionage operation gained the capability to geolocate millions of individuals and potentially record phone calls, though actual communication interception was limited to fewer than 100 high-profile targets. The breach revealed shocking security lapses, such as a single administrator account having access to over 100,000 routers and the use of primitive passwords like "1111" for management systems. Major carriers including AT&T, Verizon, and Lumen Technologies were among the affected companies, with varying degrees of impact and response effectiveness. T-Mobile stands out for their quick detection and mitigation of the attack. In response to these incidents, the FCC is preparing to vote on new cybersecurity regulations by mid-January 2025, while the White House has outlined key areas for improvement including configuration management, vulnerability management, network segmentation, and enhanced information sharing across the sector. The episode wraps up with insights from recent Censys Rapid Response posts and the latest GreyNoise blog entry about profiling benign internet scanners in 2024, along with VulnCheck's analysis of the most dangerous software weaknesses and a discussion of the Four-Faith Industrial Router vulnerability being exploited in the wild. Storm Watch Homepage >> Learn more about GreyNoise >>