CWE-1279
Cryptographic Operations are run Before Supporting Units are Ready
Performing cryptographic operations without ensuring that the supporting inputs are ready to supply valid data may compromise the cryptographic result.
CVE-2023-4489 (GCVE-0-2023-4489)
Vulnerability from cvelistv5
Published
2023-12-14 23:00
Modified
2025-05-21 14:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1279 - Cryptographic Operations are run Before Supporting Units are Ready
Summary
The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| silabs.com | Z/IP Gateway SDK |
Version: 0 |
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CVE-2024-22473 (GCVE-0-2024-22473)
Vulnerability from cvelistv5
Published
2024-02-21 18:13
Modified
2024-09-27 16:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
TRNG is used before initialization by ECDSA signing driver when exiting EM2/EM3 on Virtual Secure Vault (VSE) devices. This defect may allow Signature Spoofing by Key Recreation.This issue affects Gecko SDK through v4.4.0.
References
| ► | URL | Tags |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| silabs.com | GSDK |
Version: 0 |
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CVE-2025-29779 (GCVE-0-2025-29779)
Vulnerability from cvelistv5
Published
2025-03-14 17:24
Modified
2025-03-19 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Post-Quantum Secure Feldman's Verifiable Secret Sharing provides a Python implementation of Feldman's Verifiable Secret Sharing (VSS) scheme. In versions 0.8.0b2 and prior, the `secure_redundant_execution` function in feldman_vss.py attempts to mitigate fault injection attacks by executing a function multiple times and comparing results. However, several critical weaknesses exist. Python's execution environment cannot guarantee true isolation between redundant executions, the constant-time comparison implementation in Python is subject to timing variations, the randomized execution order and timing provide insufficient protection against sophisticated fault attacks, and the error handling may leak timing information about partial execution results. These limitations make the protection ineffective against targeted fault injection attacks, especially from attackers with physical access to the hardware. A successful fault injection attack could allow an attacker to bypass the redundancy check mechanisms, extract secret polynomial coefficients during share generation or verification, force the acceptance of invalid shares during verification, and/or manipulate the commitment verification process to accept fraudulent commitments. This undermines the core security guarantees of the Verifiable Secret Sharing scheme. As of time of publication, no patched versions of Post-Quantum Secure Feldman's Verifiable Secret Sharing exist, but other mitigations are available. Long-term remediation requires reimplementing the security-critical functions in a lower-level language like Rust. Short-term mitigations include deploying the software in environments with physical security controls, increasing the redundancy count (from 5 to a higher number) by modifying the source code, adding external verification of cryptographic operations when possible, considering using hardware security modules (HSMs) for key operations.
References
| ► | URL | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| DavidOsipov | PostQuantum-Feldman-VSS |
Version: <= 0.8.0b2 |
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Mitigation
Phase: Architecture and Design
Description:
- Best practices should be used to design cryptographic systems.
Mitigation
Phase: Implementation
Description:
- Continuously ensuring that cryptographic inputs are supplying valid information is necessary to ensure that the encrypted output is secure.
CAPEC-97: Cryptanalysis
Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction). Sometimes the weakness is not in the cryptographic algorithm itself, but rather in how it is applied that makes cryptanalysis successful. An attacker may have other goals as well, such as: Total Break (finding the secret key), Global Deduction (finding a functionally equivalent algorithm for encryption and decryption that does not require knowledge of the secret key), Information Deduction (gaining some information about plaintexts or ciphertexts that was not previously known) and Distinguishing Algorithm (the attacker has the ability to distinguish the output of the encryption (ciphertext) from a random permutation of bits).