Category: research

Introduction DLL Sideloading (T1574.002) stands as a remarkably effective stratagem employed by adversaries to execute their own malicious code, while clandestinely leveraging the implicit trust placed in legitimate applications. This report dissects the multifaceted nuances of DLL Sideloading, delving into its mechanics, the prevalence of victim applications, and its reverberating impact on the cybersecurity landscape. […]

Introduction Initially three vulnerabilities were discovered, which are described here: Advisory Vulnerabilities CVE-2022-20964 – Command Injection – CWE-78 CVE-2022-20964 - Command Injection - CWE-78 PRODUCT LINE VERSION SCORE IMPACT Cisco Identity Services Engine 2.7 < 3.2 P1 CNA: 6.3NIST: 8.8 High OWASP CATEGORY OWASP CONTROL A03 - Injection WSTG-INPV-12 AFFECTED ENDPOINT - AFFACTED PARAMETER https://ciscoise.server/admin/rs/uiapi/mnt/tcpdump/Starthttps://ciscoise.server/admin/rs/uiapi/mnt/tcpdump/DeleteFile […]

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 Ransomware attacks have emerged as a predominant menace in recent years, with the strategies employed by malicious actors constantly evolving. Among the most effective and worrisome tactics is the "double extortion" model, which has rapidly gained popularity as a preferred business model for threat actors. Financially motivated perpetrators particularly favor the double extortion model, […]

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 access […]

Introduction It is concerning to learn about the increasing use of social engineering tactics to exploit users on social media platforms. Cybercriminals commonly disguise malware as games, music, software, and other media content to deceive users into downloading and installing malicious software on their devices. One such sophisticated stealer is DuckTail, which was first identified […]

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 access […]

Introduction The vulnerability has been found during a security assessment on Netlink CCD Onboard version 3.74 and Firmware version 3.80.The Netlink CCD is an IoT control device with 3 DALI-compliant outputs and one LM-Bus interface for open-loop control of maximum 250 luminaires and motors. It can be operated locally or by using an external litenet […]

Introduction Red team operations are fundamental for achieving an adequate cybersecurity maturity level. So, many different C2 commercial frameworks were born to provide help in managing security tests. However, these technologies can be used at the same time even by attackers to make cyber intrusions. One of the most emblematic examples of this phenomenon is […]

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 […]