CVE-2025-46605 Overview
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) Feature Release versions 8.4 through 8.5 contains a session fixation vulnerability (CWE-384). A high privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access to the affected system.
Critical Impact
Session fixation allows attackers to hijack authenticated sessions, potentially gaining unauthorized access to Dell PowerProtect Data Domain systems managing critical enterprise backup and recovery operations.
Affected Products
- Dell PowerProtect Data Domain with DD OS version 8.4
- Dell PowerProtect Data Domain with DD OS version 8.5
- Dell PowerProtect Data Domain Feature Release versions between 8.4 and 8.5
Discovery Timeline
- 2026-04-17 - CVE-2025-46605 published to NVD
- 2026-04-17 - Last updated in NVD database
Technical Details for CVE-2025-46605
Vulnerability Analysis
This session fixation vulnerability affects Dell PowerProtect Data Domain systems running DD OS Feature Release versions 8.4 through 8.5. Session fixation is a type of authentication bypass attack where an attacker can set or predict a victim's session identifier before authentication occurs. Once the victim authenticates, the attacker can use the pre-set session token to gain unauthorized access to the authenticated session.
In the context of Dell PowerProtect Data Domain, this vulnerability could allow a high-privileged attacker with network access to exploit improper session management mechanisms. The attack requires high privileges and complex attack conditions, but successful exploitation could result in significant impact to confidentiality and integrity of the backup and data protection infrastructure.
Root Cause
The vulnerability stems from improper session management in the DD OS authentication mechanism (CWE-384: Session Fixation). The application fails to properly regenerate or invalidate session identifiers during the authentication process, allowing an attacker to force a known session identifier onto a target user's session. This occurs when the system accepts session tokens provided externally rather than generating fresh, cryptographically random session identifiers upon successful authentication.
Attack Vector
The attack is conducted over the network and requires the attacker to have high privileges on the system. The exploitation scenario involves:
- The attacker obtains or generates a valid session identifier on the Dell PowerProtect Data Domain system
- The attacker tricks a legitimate user into authenticating with the pre-set session identifier
- Once authentication succeeds, the attacker uses the known session identifier to hijack the authenticated session
- With session access, the attacker can perform actions with the victim's privileges
The attack does not require user interaction but does require complex conditions to execute successfully. Successful exploitation could lead to unauthorized access with potential high impact on both confidentiality and integrity, with limited impact on availability.
Detection Methods for CVE-2025-46605
Indicators of Compromise
- Unusual session ID patterns or reuse of session tokens across different authentication events
- Authentication events where session identifiers remain unchanged before and after login
- Multiple authentication attempts from different source IPs using identical session tokens
- Suspicious administrative access patterns on Dell PowerProtect Data Domain systems
Detection Strategies
- Monitor authentication logs for session tokens that persist unchanged through the authentication process
- Implement network traffic analysis to detect session token injection attempts targeting DD OS management interfaces
- Review audit logs for administrative actions that do not correlate with expected user activity
- Deploy behavioral analytics to identify anomalous access patterns on backup infrastructure
Monitoring Recommendations
- Enable comprehensive logging on Dell PowerProtect Data Domain systems for all authentication events
- Configure alerting for session-related anomalies in the DD OS management console
- Implement network segmentation monitoring to detect unauthorized access attempts to data protection infrastructure
- Regularly audit privileged account activity and session management events
How to Mitigate CVE-2025-46605
Immediate Actions Required
- Review the Dell Security Update DSA-2026-060 for detailed patch information and remediation guidance
- Inventory all Dell PowerProtect Data Domain systems running DD OS versions 8.4 through 8.5
- Apply the security update provided by Dell as soon as possible
- Restrict network access to DD OS management interfaces to trusted networks and IP addresses only
- Review and audit current privileged account access to affected systems
Patch Information
Dell has released a security update addressing this vulnerability. Detailed patch information and download links are available in the Dell Security Update DSA-2026-060 advisory. Organizations should prioritize applying this update to all affected Dell PowerProtect Data Domain systems running DD OS Feature Release versions 8.4 through 8.5.
Workarounds
- Implement strict network access controls to limit exposure of DD OS management interfaces to trusted networks only
- Enable multi-factor authentication for administrative access where supported
- Monitor session activity closely and implement session timeout policies to limit the window of exploitation
- Consider placing affected systems behind a VPN or jump host to add an additional authentication layer
# Network access restriction example (implement at firewall/network level)
# Restrict access to DD OS management ports to trusted admin networks only
# Example: Allow only specific management VLAN access to port 443/TCP
# Consult Dell documentation for specific port requirements
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
