Configuration changes via cross-site WebSocket hijacking
Published Jul 12, 2021 · Updated Sep 17, 2024
Cross-site WebSocket hijacking in Dell PowerFlex 3.5.x allows remote attackers to trigger Presentation Server configuration changes. The WebUI accepts attacker-originated WebSocket actions without sufficient authenticity verification, although Dell has not identified the responsible handler or omitted check. Exploitation requires an unauthenticated attacker to trick a user into interacting with attacker-controlled content; the documented consequence is limited to unwanted Presentation Server actions and configuration changes.
Summary
What happened
Cross-site WebSocket hijacking in Dell PowerFlex 3.5.x allows remote attackers to trigger Presentation Server configuration changes. The WebUI accepts attacker-originated WebSocket actions without sufficient authenticity verification, although Dell has not identified the responsible handler or omitted check. Exploitation requires an unauthenticated attacker to trick a user into interacting with attacker-controlled content; the documented consequence is limited to unwanted Presentation Server actions and configuration changes.
The record
- CVE
- CVE-2021-21588
- Published
- Jul 12, 2021
- Updated
- Sep 17, 2024
- Vendor
- Dell Technologies
- Product
- PowerFlex
- Classifications
- CWE-345, T1204
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 12, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.5.x
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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