Description

Dell PowerScale OneFS, versions 9.5.0.0 through 9.7.1.15, versions 9.8.0.0 through 9.13.1.0, and versions prior to 9.15.0.0, contain an Incorrect Authorization vulnerability. A low privileged adjacent network attacker could potentially exploit this vulnerability, leading to unauthorized modification of system logs.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.5",
  "pubDate": "2026-09-09T17:17:21.370Z",
  "pubdate": "2026-09-09T17:17:21.370Z",
  "executiveSummary": "Dell PowerScale OneFS is impacted by an Incorrect Authorization vulnerability that allows unauthorized modification of system logs.\nThe vulnerability type is classified as Incorrect Authorization, which stems from improper access control enforcement within the system's log management subsystem.\nThe affected product versions include 9.5.0.0 through 9.7.1.15, 9.8.0.0 through 9.13.1.0, and all versions prior to 9.15.0.0.\nThis vulnerability poses a significant risk to the integrity of audit trails and forensic logs, potentially allowing an attacker to hide malicious activities or manipulate operational history.\nThe exploitation requirement involves an attacker positioned on an adjacent network with low-privileged access to the system.\nSuccessful exploitation enables an unauthorized actor to modify system logs, thereby undermining the system's accountability and compliance posture.",
  "technicalDetails": "The vulnerability originates from a deficiency in the authorization logic governing the log modification interfaces within Dell PowerScale OneFS. Specifically, the system fails to adequately validate the user's privilege level and assigned permissions when processing requests to modify or overwrite system logs.\nRoot cause analysis indicates that the affected component does not implement granular access control lists (ACLs) or appropriate object-level authorization checks during log write or edit operations. This oversight allows a low-privileged user account to bypass intended security constraints, granting them access to system-level log files that should be restricted to administrators or automated system processes.\nThe attack flow begins with an authenticated attacker gaining access to the adjacent network segment where the PowerScale cluster resides. Leveraging low-privileged credentials, the attacker initiates requests targeted at the log management services. Because the service performs insufficient authorization validation, the attacker is able to interact with the file system or internal APIs responsible for log handling.\nThe exploitation process involves the attacker crafting and sending specific requests that the system erroneously accepts. Once the authorization check is bypassed, the attacker can invoke functions that permit the alteration of log entries. By modifying these logs, an attacker can effectively purge forensic evidence, conceal lateral movement, or inject deceptive information into the audit streams to mislead security operations center (SOC) analysts.\nThe vulnerability resides within the internal mechanisms responsible for log lifecycle management. The impact of this exploit is primarily integrity loss; the authenticity and non-repudiation of system logs are compromised. This is a critical concern for environments requiring strict regulatory compliance and robust incident response capabilities, as an attacker can systematically dismantle the audit trail of their presence on the network. The scope of the vulnerability spans multiple release branches, indicating a pervasive issue within the authorization logic of the affected versions, necessitating a comprehensive review of service-level privilege management and authorization enforcement points."
}