Yoroi Blog

Con la presente CERT-Yoroi intende informarla riguardo un nuovo attacco sul framework PyTorch, sul quale è stata scoperta una dipendenza malevola chiamata 'torchtriton', caricata sul registro registro Python Package Index (PyPI). Il nome era lo stesso di una libreria ufficiale pubblicata da PyTorch, una piattaforma di apprendimento automatico open source. Nell'importazione delle dipendenze in ambiente […]

La vulnerabilità identificata con il numero CVE-2022-42475 è una vulnerabilità di tipo heap buffer overflow presente in FortiOS SSL-VPN. Questa vulnerabilità può consentire a un attaccante non autenticato di eseguire codice o comandi arbitrari tramite richieste appositamente forgiate. La vulnerabilità è stata segnalata essere sfruttata in modo attivo. La vulnerabilità di buffer overflow di heap […]

Introduction Initially three vulnerabilities were discovered, which are described here: https://yoroi.company/?s=saguri. Further research prompted the discovery of four other vulnerabilities including a Command Injection, which if exploited allows one to gain root access to the system shell.Cisco ISE is a network management tool which allows definition and implementation of security and management policies, which enable […]

Introduction Royal Ransomware is a new group first spotted on Bleeping Computer last September, where the cybersecurity news site revealed a connection with another malware known as Zeon.   At the moment, we don’t have much information about the group and all its actual TTPs, but we know that they use the Double Extortion model to […]

Introduction Through the internal project called Saguri, we started with the analysis of the Cisco Identity Service Engine - 3.1.0.518-Patch3-22042809, the Cisco ISE is a useful tool in the management of one's own network and not only, it allows the implementation and application in a dynamic and automated way of security and 'management' policies, simplifying […]

Introduction During a security assessment on FusionDirectory version 1.3 two criticalities have been identified.FusionDirectory allows to manage data archived in LDAP directories so, as you might imagine, security problems leading to an exposure of personal and enterprise could have a serious impact on the business. Advisory CVE-2022-36180 - Cross Site Scripting – CWE 79 CVE-2022-36180 […]

Introduction In July 2022 the Yoroi advisory team, in the context of its internal project Saguri, started analysing the Cisco Identity Service En-gine (ver. 3.1.0.518-Patch3-22042809).Cisco ISE is a network management tool which allows definition and implementation of security and management policies, which enable precise controls over who can access the network, what they have access […]

Introduction In July 2022 the Yoroi advisory team, in the context of its internal project Saguri, started analysing the Cisco Identity Service Engine (ver. 3.1.0.518-Patch3-22042809). Cisco ISE is a network management tool which allows definition and implementation of security and management policies, which enable precise controls over who can access the network, what they have […]

Con la presente CERT-Yoroi desidera informarla riguardo una grave vulnerabilità 0day su Microsoft Exchange, nota con identificativo CVE-2022-41082 e conosciuta anche con l’alias ProxyNotShell. Per sfruttare entrambe le vulnerabilità è necessario, per un attaccante remoto, possedere le credenziali di un utente non privilegiato. In questo modo sono possibili due differenti tecniche di attacco di cui […]

Introduction BlueSky is a ransomware firstly spotted in May 2022 and it gained the attention of the threat researchers for two main reasons: the first one is that the group behind the ransomware doesn’t adopt the double-extortion model; the second one is that their targets are even normal users because the ransomware has been discovered […]

Con la presente CERT-Yoroi desidera informarla riguardo una grave vulnerabilità su dispositivi Apple. La vulnerabilità coinvolge la maggior parte dei prodotti del Vendor, in modalità "zero-day". Essa è nota con identificativo CVE-2022-32917 e riguarda una importante falla nel kernel. La falla può permettere ad un attaccante remoto in grado di convincere la vittima ad installare un'app […]

Introduction  Hive ransomware is one of the most active financially motivated threat actors of this period, adopting the current Double Extorsion model. They started their malicious activities in June of the past year, and just in a year of activity they collected a big number of victims, demonstrating the capability to hit even critical infrastructures.   […]