CVE-2024-20399

Enterprises have long relied on firewalls, routers, VPN servers, and email gateways to protect their networks from attacks. Increasingly, however, these network edge devices are becoming security liabilities themselves. Every few weeks, another crisis plays out: Security teams scramble to patch and scan their network appliances for malware implants after another zero-day attack is newly […]

Cisco Talos observed Chinese hackers pivoting from a compromised device operated by one telecom to target a device in another telecom.

Zero-day vulnerabilities saw big growth once again in 2024. With no patch available, zero-day flaws give attackers a significant jump on cybersecurity defense teams, making them a critical weapon for attacking enterprise systems. But while all zero-days are essential for CISOs and their team to be aware of, and for vendors to remedy in a […]

US CFPB warns employees to avoid work-related mobile calls and texts following China-linked Salt Typhoon hack over security concerns. The US government’s Consumer Financial Protection Bureau (CFPB) advises employees to avoid using cellphones for work after China-linked APT group Salt Typhoon hackers breached major telecom providers. The Consumer Financial Protection Bureau (CFPB) is a U.S. […]

China-linked threat actors compromised some U.S. internet service providers (ISPs) as part of a cyber espionage campaign code-named Salt Typhoon. China-linked threat actors have breached several U.S. internet service providers in recent months as part of a cyber espionage campaign code-named Salt Typhoon. The state-sponsored hackers aimed at gathering intelligence from the targets or carrying […]

A Chinese state-sponsored cyberespionage group tracked as Velvet Ant exploited a zero-day vulnerability in Cisco NX-OS earlier this year to deploy a custom malware implant on an organization’s network switches, according to researchers from security firm Sygnia. The backdoor was injected into memory by masquerading a known process and was deleted from the file system […]

China-linked APT group Velvet Ant exploited a recently disclosed zero-day in Cisco switches to take over the network appliance. Researchers at cybersecurity firm Sygnia reported that the China-linked APT group Velvet Ant has exploited the recently disclosed zero-day CVE-2024-20399 in Cisco switches to take over the network devices. In July 2024, Cisco addressed the NX-OS zero-day CVE-2024-20399 […]

Hackers gained access to the switch using valid administrator credentials, and then ‘jailbroke’ from the application level into the OS level.

In response to recent intrusions, CISA and the FBI are urging businesses and device manufacturers to eliminate OS command injection vulnerabilities at the source.

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft Windows and Rejetto HTTP File Server bugs to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: Below are the descriptions of the flaws added to the KEV catalog: CVE-2024-23692 (CVSS score […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco NX-OS Command Injection bug to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Cisco NX-OS Command Injection Vulnerability, tracked as CVE-2024-20399, to its Known Exploited Vulnerabilities (KEV) catalog. This week, Cisco addressed an NX-OS zero-day, tracked as CVE-2024-20399 (CVSS score […]

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Cisco has released patches for several series of Nexus switches to fix a vulnerability that could allow attackers to hide the execution of bash commands on the underlying operating system. Although the flaw is rated with moderate severity because it requires administrative credentials to exploit, it has been exploited in the wild since April, showing […]

Cisco has patched an NX-OS command injection zero-day exploited by China-linked cyberespionage group Velvet Ant.

Cisco fixed an actively exploited NX-OS zero-day, the flaw was exploited to install previously unknown malware as root on vulnerable switches. Cisco addressed an NX-OS zero-day, tracked as CVE-2024-20399 (CVSS score of 6.0), that the China-linked group Velvet Ant exploited to deploy previously unknown malware as root on vulnerable switches. The flaw resides in the […]