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Pasquale Fiorillo
A black-and-white photograph of a rocky coastline.

Pasquale Fiorillo / sid

Security Consultant & Researcher.
Mind about your safety.

About me

Systems & architecture

I’m CTO at Rooters, leading technical strategy, software architecture, and infrastructure.

Offensive security

At ISGroup, I perform penetration tests and vulnerability assessments on networks and web applications.

Vulnerability research

I research vulnerabilities in widely used software and web applications, often in collaboration with USH.

Notes & articles

From technical papers to personal notes, I share what I learn. You can find more on my blog.

A bit of history

My passion for computers began with a Commodore 64, which I still jealously keep, followed by an Amiga 500 and my first PCs. Around 1995, with the first dial-up connections, I discovered the Internet and started hanging out on IRC in channels like #phreak.it, #hack.it, and #zapolandia.

Back then, I devoured every e-zine I could find, from technical classics like Phrack, s0ftpj’s BFi, and UIC (Università Italiana Cracking) to lamer reads like Netrunners. That eventually led me to co-found Italian Hard Phreaking with IRC friends, writing about hacking, reverse engineering, and exploiting phone networks for free calls and more, which was also published on Spaghetti Phreakers, Italy’s last and youngest old-school phreaking crew.

Over time, that same curiosity led me to security research in a long-standing collaboration with the people at USH, and today AI opens up a whole new world to explore.

Away from the keyboard, I have a deep love for the sea: I hold an Open Water Diver certification and recently earned my sailing license for cruising yachts.

Publications

Security research and advisories.

GoSign Desktop

CVE-2025-34324CVE-2025-34327

Multiple Vulnerabilities in GoSign Desktop Lead to Remote Code Execution

When configured to use a proxy, GoSign Desktop 2.4.0 and earlier disables TLS certificate validation and relies on unsigned update manifests, allowing remote code execution, credential theft, and privilege escalation.

Pasquale ‘sid’ Fiorillo, Francesco ‘ascii’ Ongaro, Marco Lunardi

Sources & references (6)

QNAP QTS

CVE-2017-5227

QNAP QTS Domain Privilege Escalation Vulnerability

A vulnerability in QNAP QTS allows a local user, such as the httpdusr account used by web applications, to escalate privileges to Domain Administrator when the NAS is joined to a domain.

Pasquale ‘sid’ Fiorillo, Guido ‘go’ Oricchio

Sources & references (9)

Veeam Backup & Replication

CVE-2015-5742

Veeam Backup & Replication Local Privilege Escalation Vulnerability

A vulnerability in Veeam Backup & Replication allows a low-privileged local Windows user, such as an anonymous IIS virtual host account, to escalate privileges to Domain Administrator.

Pasquale ‘sid’ Fiorillo, Francesco ‘ascii’ Ongaro, Antonio ‘s4tan’ Parata

Sources & references (12)

Keep in touch

Reach out by email or find me on these platforms.

For professional services, please contact Rooters.

Email

info@{myname}{mysurname}.it

{myname} is pasquale
{mysurname} is fiorillo

Encryption

My public PGP key: 0x124FED2DF8DA417E

Download public key ↓