> Markdown version of [/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba?t=896](https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba?t=896). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Hacking MSSQL on Cloud. All of them. How I became sysadmin on Azure, AWS, GCP and Alibaba.

Can a standard user hijack your managed cloud database? See how abusing DDL triggers and un-sanitized T-SQL yielded full sysadmin rights across Azure, AWS, GCP, and Alibaba.

- **Speakers:** [Fabiano Amorim](https://www.wearedevelopers.com/@fabiano-amorim)
- **Event:** World Congress 2026 Europe
- **Published:** July 10, 2026
- **Duration:** 29:53
- **URL:** https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba

## Summary

Uncovering security flaws in managed cloud databases often starts closer to home. Driven by the need to automate SQL injection detection, the speaker developed a custom PowerShell parsing tool using Microsoft's ScriptDom. Running this script against Microsoft's own internal stored procedures revealed massive vulnerabilities where user inputs were haphazardly concatenated into dynamic T-SQL queries without proper sanitization.

Applying these internal flaws to the managed SQL offerings of Azure, GCP, AWS, and Alibaba allowed a standard user to successfully escalate limited privileges to full `sysadmin`. The exploits primarily leveraged internal procedures running with elevated rights and hijacked execution contexts via DDL triggers. For instance, creating a trigger on a `CREATE TABLE` event and waiting for a highly privileged background GCP process to fire it allowed the attacker to secretly assign themselves sysadmin roles. Alibaba's discontinued serverless architecture suffered the most dramatic compromise: reaching sysadmin permitted extreme cross-tenant data access via `xp_cmdshell`, exposing up to 40 other clients' database files on the same server and revealing plaintext passwords in operational logs.

These widespread cloud exploits underline a profound administrative takeaway: meticulously enforce the principle of least privilege. Database administrators and developers must actively revoke default execution rights for obscure geographic calculating procedures or structural DDL triggers if the application does not explicitly need them. Ensuring applications can only access strictly defined, necessary components blocks the complex context-hijacking chains that make these hacks possible.

**Keywords:** managed sql server security, cloud privilege escalation, sql injection vulnerabilities, t-sql dynamic queries, azure sql database exploits, gcp cloudsql vulnerabilities, aws rds security, alibaba apsaradb breaches, ddl trigger context hijacking, xp_cmdshell post-exploitation, cross-tenant data access, principle of least privilege, scriptdom parser utility, internal stored procedures, implicit type conversion flaws

## Chapters

1. **Identifying SQL injection vulnerabilities in internal stored procedures** (00:03) — Automating security checks reveals common flaws in complex internal queries where user input is unsafely concatenated.
1. **Validating SQL injection risks with a PowerShell module** (04:11) — A programmatic demonstration parses statements to pinpoint unsafe dynamic command concatenations and risks stemming from implicit data type conversions.
1. **Exploiting internal stored procedures to execute shell commands** (07:42) — System procedures inherently possess elevated privileges that attackers compromise to bypass execution restrictions and run operating system commands.
1. **Bypassing sysadmin restrictions across major cloud providers** (12:27) — Despite restrictive managed service guarantees, underlying architectural implementation flaws enable full privilege escalation across multiple cloud database environments.
1. **Exploiting managed instances on Azure and Alibaba Cloud** (14:56) — Bypassing weak internal mitigations and exploiting shared architectural environments exposes cross-tenant databases and plaintext system credentials.
1. **Hijacking administrative execution context using DDL event triggers** (21:08) — Malicious data definition triggers intercept automated administrative procedures to secretly elevate standard application users into elevated administrators.
1. **Hardening database environments through the principle of least privilege** (28:06) — Revoking default access to unneeded system capabilities proactively protects instances against chained privilege escalation attacks.

## Related Moments

- [Examining real-world zero-day exploits in enterprise applications](https://www.wearedevelopers.com/videos/716-hack-proof-the-node-js-runtime-the-mechanics-and-defense-of-path-traversal-attacks) (from "Hack-Proof The Node.js runtime: The Mechanics and Defense of Path Traversal Attacks")
- [Understanding common web application vulnerabilities and risks](https://www.wearedevelopers.com/videos/724-security-in-modern-web-applications-owasp-to-the-rescue) (from "Security in modern Web Applications - OWASP to the rescue!")
- [Exploiting cloud metadata servers and manipulating authentication tokens](https://www.wearedevelopers.com/videos/1829-how-to-defend-against-data-manipulation-attacks-bozidar-spirovski-wekoslav-stefanovski) (from "How to Defend Against Data Manipulation Attacks - Bozidar Spirovski & Wekoslav Stefanovski")
- [Identifying common and emerging application injection attack vectors](https://www.wearedevelopers.com/videos/1829-how-to-defend-against-data-manipulation-attacks-bozidar-spirovski-wekoslav-stefanovski) (from "How to Defend Against Data Manipulation Attacks - Bozidar Spirovski & Wekoslav Stefanovski")
- [Identifying command injection flaws in developer infrastructures](https://www.wearedevelopers.com/videos/346-stranger-danger-your-java-attack-surface-just-got-bigger) (from "Stranger Danger: Your Java Attack Surface Just Got Bigger")
- [The risk of weak credentials in maintainer accounts](https://www.wearedevelopers.com/videos/346-stranger-danger-your-java-attack-surface-just-got-bigger) (from "Stranger Danger: Your Java Attack Surface Just Got Bigger")

## Related Articles

- [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks)
- [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities)
- [The Overflow: Security and Privacy](https://www.wearedevelopers.com/magazine/715-the-overflow-security-and-privacy)
- [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)

## Related Jobs

- [Engineer, Offensive Security Organization](https://www.wearedevelopers.com/jobs/ext/1992296-engineer-offensive-security-organization) at **Twilio**
- [Staff Developer Advocate, GitHub Security Lab](https://www.wearedevelopers.com/jobs/ext/1921051-staff-developer-advocate-github-security-lab) at **GitHub**
- [Cloud Foundations Team](https://www.wearedevelopers.com/jobs/ext/1483289-cloud-foundations-team) at **GitHub**
- [Security Engineer](https://www.wearedevelopers.com/jobs/ext/1574416-security-engineer) at **Twilio**
- [Security Architect - AI](https://www.wearedevelopers.com/jobs/ext/1581899-security-architect-ai) at **ZEISS Group**
- [Penetration Tester / Red team Specialist](https://www.wearedevelopers.com/jobs/ext/293774-penetration-tester-red-team-specialist) at **Raiffeisen Bank International AG**