Critical Vulnerability in Commvault Command Center: Immediate Actions Required to Mitigate Risks

Critical Security Flaw Discovered in Commvault Command Center

A severe security vulnerability in Commvault Command Center could allow attackers to execute arbitrary code without authentication, potentially leading to complete system compromise. The critical flaw, tracked as CVE-2025-34028 with a CVSS score of 9.0, was discovered by watchTowr Labs researcher Sonny Macdonald. This discovery highlights the critical importance of maintaining robust cybersecurity measures in enterprise systems.

The vulnerability stems from an endpoint called deployWebpackage.do that triggers a pre-authenticated Server-Side Request Forgery (SSRF), creating a significant risk for organizations using the platform for data protection and backup management.

Impact and Technical Details

The severity of this vulnerability lies in its pre-authentication nature, meaning attackers don't need valid credentials to exploit it. "This Commvault vulnerability underscores a significant risk: attackers can exploit weak API endpoints to gain extensive access to sensitive systems," explains Eric Schwake, Director of Cybersecurity Strategy at Salt Security.

Organizations must understand that implementing a comprehensive cybersecurity strategy is essential to protect against such vulnerabilities. The potential consequences are far-reaching, including:

• Widespread data leaks
• Ransom demands for encrypted backups
• Complete control over recovery processes
• Exposure of sensitive information
• Compromise of host systems

Critical Response Measures

Security experts recommend several immediate actions for organizations using Commvault Command Center. As part of maintaining proper security protocols for critical business systems, organizations should take immediate action.

Thomas Richards, Infrastructure Security Practice Director at Black Duck, advises: "Users of Commvault should patch their installation immediately and begin forensic examination to determine if their instance was exploited. If the instance was exposed to the internet, firewall restrictions should be put in place to control who can access it."

Heath Renfrow, CISO and Co-founder at Fenix24, outlines specific preventive measures:

• Apply patches without delay following Commvault's April 17th advisory
• Temporarily restrict internet access to the Command Center interface
• Inspect for Indicators of Compromise (IOCs)
• Conduct a comprehensive configuration audit

For additional technical details about this vulnerability, refer to the CISA Known Exploited Vulnerabilities Catalog.

Immediate Security Assessment: Organizations should immediately check if they're running vulnerable versions of Commvault Command Center.

Risk Mitigation: Implement recommended security measures, including network isolation and access control restrictions.

Long-term Planning: Review and update security protocols for backup and recovery systems, considering the potential impact of similar vulnerabilities.

The discovery of this vulnerability serves as a reminder of the critical importance of maintaining robust security measures for backup and recovery systems, which are often key targets for cybercriminals seeking to compromise organizational data.