Barracuda ESG

Pierluigi Paganini August 29, 2023
UNC4841 threat actors hacked US government email servers exploiting Barracuda ESG flaw

China-linked threat actors breached government organizations worldwide with attacks exploiting Barracuda ESG zero-day. In June, Mandiant researchers linked the threat actor UNC4841 to the attacks that exploited the recently patched Barracuda ESG zero-day vulnerability to China. “Through the investigation, Mandiant identified a suspected China-nexus actor, currently tracked as UNC4841, targeting a subset of Barracuda ESG […]

Pierluigi Paganini August 25, 2023
FBI: Patches for Barracuda ESG Zero-Day CVE-2023-2868 are ineffective

The FBI warned that patches for a critical Barracuda ESG flaw CVE-2023-2868 are “ineffective” and patched appliances are still being hacked. The Federal Bureau of Investigation warned that security patches for critical vulnerability CVE-2023-2868 in Barracuda Email Security Gateway (ESG) are “ineffective.” According to the feds, threat actors are still hacking the patched appliances in […]

Pierluigi Paganini August 10, 2023
CISA discovered a new backdoor, named Whirlpool, used in Barracuda ESG attacks

The U.S. Cybersecurity & Infrastructure Security Agency (CISA) observed a new backdoor, named Whirlpool, in attacks on Barracuda ESG appliances. The U.S. Cybersecurity & Infrastructure Security Agency (CISA) has discovered a new backdoor, named Whirlpool, that was employed in attacks targeting Barracuda ESG devices. At the end of May, the network security solutions provider Barracuda warned […]

Pierluigi Paganini July 29, 2023
CISA warns about SUBMARINE Backdoor employed in Barracuda ESG attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warns of threat actors deploying the SUBMARINE Backdoor in Barracuda ESG attacks. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) published an alert on a malware variant, tracked as SUBMARINE Backdoor, that was employed in attacks exploiting the flaw CVE-2023-2868 in Barracuda Email Security Gateway (ESG) appliances. The vulnerability […]