TLS plaintext recovery via weak Diffie-Hellman moduli
Published Aug 27, 2023 · Updated Sep 30, 2024
Weak cryptography in IBM Storage Defender Copy Data Management 2.2.0.0 through 2.2.19.0 allows attackers to decrypt TLS traffic. The TLS endpoint accepts Diffie-Hellman moduli of 1024 bits or fewer, making the negotiated shared secret recoverable through cryptanalysis. Exploitation requires access to an affected TLS connection and sufficient cryptanalytic resources; recovered secrets expose plaintext and permit connection-integrity violations.
Summary
What happened
Weak cryptography in IBM Storage Defender Copy Data Management 2.2.0.0 through 2.2.19.0 allows attackers to decrypt TLS traffic. The TLS endpoint accepts Diffie-Hellman moduli of 1024 bits or fewer, making the negotiated shared secret recoverable through cryptanalysis. Exploitation requires access to an affected TLS connection and sufficient cryptanalytic resources; recovered secrets expose plaintext and permit connection-integrity violations.
The record
- CVE
- CVE-2023-38730
- Published
- Aug 27, 2023
- Updated
- Sep 30, 2024
- Vendor
- IBM
- Product
- IBM Storage Defender Copy Data Management
- Classifications
- CWE-327, T1040
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 27, 2023CVE publishedPublication date reported by the CVE source.
- Sep 30, 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=2.2.0.0 <=2.2.19.0
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
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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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