Executive Summary
In mid-2024, the threat actor group UNC5537 executed a large-scale cyberattack targeting approximately 165 organizations utilizing Snowflake's cloud data platform. By exploiting stolen credentials obtained through infostealer malware, the attackers accessed customer environments lacking multi-factor authentication (MFA). High-profile victims included AT&T, Ticketmaster, and Santander Bank, with sensitive data such as personally identifiable information and call records compromised. The breach underscored the critical importance of enforcing MFA and maintaining robust credential hygiene to prevent unauthorized access. (en.wikipedia.org)
This incident highlights a growing trend of cybercriminals leveraging stolen credentials to infiltrate cloud services, emphasizing the need for organizations to implement stringent access controls and continuous monitoring to safeguard sensitive data.
Why This Matters Now
The Snowflake breach exemplifies the escalating threat posed by credential-based attacks on cloud platforms, underscoring the urgency for organizations to enforce multi-factor authentication and enhance security protocols to protect against similar exploits.
Attack Path Analysis
Attackers exploited stolen credentials lacking multi-factor authentication to access Snowflake customer accounts. They escalated privileges by leveraging these credentials to gain administrative access. Lateral movement occurred as attackers navigated through interconnected systems within the compromised environments. Command and control were established to maintain persistent access and control over the compromised systems. Data exfiltration involved transferring sensitive customer data to external servers. The impact included data breaches affecting numerous organizations, leading to significant data exposure and potential financial losses.
Kill Chain Progression
Initial Compromise
Description
Attackers used stolen credentials, obtained via infostealer malware, to access Snowflake customer accounts that lacked multi-factor authentication.
Related CVEs
CVE-2021-1675
CVSS 7.8A remote code execution vulnerability in the Windows Print Spooler service due to improper handling of privileged file operations.
Affected Products:
Microsoft Windows Print Spooler – All supported versions prior to July 2021 patches
Exploit Status:
exploited in the wildCVE-2021-34527
CVSS 8.8A remote code execution vulnerability in the Windows Print Spooler service, also known as 'PrintNightmare', allowing attackers to execute arbitrary code with SYSTEM privileges.
Affected Products:
Microsoft Windows Print Spooler – All supported versions prior to July 2021 patches
Exploit Status:
exploited in the wild
MITRE ATT&CK® Techniques
Valid Accounts
Brute Force
Supply Chain Compromise
Phishing
OS Credential Dumping
Command and Scripting Interpreter
Application Layer Protocol
Data Encrypted for Impact
Potential Compliance Exposure
Mapping incident impact across multiple compliance frameworks.
PCI DSS 4.0 – Multi-Factor Authentication
Control ID: 8.3.1
NYDFS 23 NYCRR 500 – Multi-Factor Authentication
Control ID: 500.12
DORA – ICT Risk Management Framework
Control ID: Article 6
CISA ZTMM 2.0 – Identity and Access Management
Control ID: 3.1
NIS2 Directive – Cybersecurity Risk Management Measures
Control ID: Article 21
Sector Implications
Industry-specific impact of the vulnerabilities, including operational, regulatory, and cloud security risks.
Computer Software/Engineering
ChainDrop worm's supply chain attack on npm packages with automated credential harvesting directly threatens software development pipelines and CI/CD security controls.
Financial Services
Snowflake breaches exposing 100M records plus ransomware-as-a-service targeting demonstrates critical data exfiltration risks requiring enhanced zero trust segmentation and encryption.
Information Technology/IT
Multi-vector attacks exploiting unencrypted traffic, lateral movement, and AI agent vulnerabilities necessitate comprehensive east-west traffic security and anomaly detection capabilities.
Health Care / Life Sciences
Credential harvesting and data exfiltration threats directly impact HIPAA compliance requirements for encrypted traffic, access controls, and patient data protection.
Sources
- The Good, the Bad and the Ugly in Cybersecurity – Week 32https://www.sentinelone.com/blog/the-good-the-bad-and-the-ugly-in-cybersecurity-week-32-8/Verified
- New ChainDrop worm poisons over 1,300 npm packages, Keyv and Cacheable among those hithttps://www.techradar.com/pro/security/new-chaindrop-worm-poisons-over-1-300-npm-packages-keyv-and-cacheable-among-those-hitVerified
- CVE-2021-1675 – PrintNightmare Vulnerabilityhttps://www.deepwatch.com/labs/cve-2021-1675-printnightmare-vulnerability/Verified
Frequently Asked Questions
Cloud Native Security Fabric Mitigations and ControlsCNSF
Aviatrix Zero Trust CNSF is pertinent to this incident as it could have limited the attacker's ability to escalate privileges, move laterally, and exfiltrate data by enforcing strict segmentation and identity-aware policies.
Control: Cloud Native Security Fabric (CNSF)
Mitigation: While Aviatrix Zero Trust CNSF may not prevent initial unauthorized access due to credential theft, it could limit the attacker's ability to exploit the compromised account by enforcing strict identity-based policies.
Control: Zero Trust Segmentation
Mitigation: Aviatrix Zero Trust Segmentation could limit the attacker's ability to escalate privileges by enforcing strict access controls and segmenting administrative functions.
Control: East-West Traffic Security
Mitigation: Aviatrix East-West Traffic Security could constrain the attacker's lateral movement by enforcing strict segmentation between workloads.
Control: Multicloud Visibility & Control
Mitigation: Aviatrix Multicloud Visibility & Control could limit the attacker's ability to establish and maintain command and control channels by monitoring and controlling outbound communications.
Control: Egress Security & Policy Enforcement
Mitigation: Aviatrix Egress Security & Policy Enforcement could limit the attacker's ability to exfiltrate data by enforcing strict egress policies.
While Aviatrix Zero Trust CNSF may not eliminate all impacts, it could reduce the scope of data exposure and financial losses by limiting the attacker's ability to access and exfiltrate sensitive data.
Impact at a Glance
Affected Business Functions
- Software Development
- Package Management
- Continuous Integration/Continuous Deployment (CI/CD) Pipelines
Estimated downtime: 14 days
Estimated loss: N/A
Developer credentials, API keys, and tokens from compromised npm packages.
Recommended Actions
Key Takeaways & Next Steps
- • Enforce multi-factor authentication (MFA) across all user accounts to prevent unauthorized access.
- • Implement Zero Trust Segmentation to limit lateral movement within the network.
- • Utilize Threat Detection & Anomaly Response systems to identify and respond to suspicious activities promptly.
- • Apply Egress Security & Policy Enforcement to monitor and control data exfiltration attempts.
- • Regularly audit and rotate credentials to minimize the risk of credential-based attacks.
