Confidential-data inference via observable timing discrepancy
Published Feb 2, 2024 · Updated Aug 3, 2024
Observable timing discrepancy in Dell BSAFE Micro Edition Suite before 4.5.2 allows remote attackers to infer confidential data. Dell has not published the affected cryptographic operation or the input-dependent timing behavior, and technical details are restricted to maintenance customers. Exploitation is unauthenticated and network-reachable but requires high attack complexity; the reported consequence is limited to confidentiality.
Summary
What happened
Observable timing discrepancy in Dell BSAFE Micro Edition Suite before 4.5.2 allows remote attackers to infer confidential data. Dell has not published the affected cryptographic operation or the input-dependent timing behavior, and technical details are restricted to maintenance customers. Exploitation is unauthenticated and network-reachable but requires high attack complexity; the reported consequence is limited to confidentiality.
The record
- CVE
- CVE-2021-21575
- Published
- Feb 2, 2024
- Updated
- Aug 3, 2024
- Vendor
- Dell Technologies
- Product
- BSAFE Micro Edition Suite
- Classifications
- CWE-203, CWE-208
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 2, 2024CVE publishedPublication date reported by the CVE source.
- Aug 3, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=All versions before 4.5.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
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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