CWE-1204
Generation of Weak Initialization Vector (IV)
The product uses a cryptographic primitive that uses an Initialization Vector (IV), but the product does not generate IVs that are sufficiently unpredictable or unique according to the expected cryptographic requirements for that primitive.
CVE-2022-26083 (GCVE-0-2022-26083)
Vulnerability from cvelistv5 – Published: 2025-02-14 20:41 – Updated: 2025-02-18 16:29
VLAI?
Summary
Generation of weak initialization vector in an Intel(R) IPP Cryptography software library before version 2021.5 may allow an unauthenticated user to potentially enable information disclosure via local access.
Severity ?
7.5 (High)
CWE
- Information Disclosure
- CWE-1204 - Generation of Weak Initialization Vector (IV)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) IPP Cryptography software library |
Affected:
before version 2021.5
|
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CVE-2023-2747 (GCVE-0-2023-2747)
Vulnerability from cvelistv5 – Published: 2023-06-15 19:49 – Updated: 2024-12-11 20:59
VLAI?
Title
Uninitialized IV in Silicon Labs SE FW v2.0.0 through v 2.2.1 for internally stored data
Summary
The initialization vector (IV) used by the secure engine (SE) for encrypting data stored in the SE flash memory is uninitialized.
Severity ?
CWE
- CWE-1204 - Generation of Weak Initialization Vector (IV)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| silabs.com | GSDK |
Affected:
2.0.0 , ≤ 2.2.1
(patch)
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CVE-2025-0714 (GCVE-0-2025-0714)
Vulnerability from cvelistv5 – Published: 2025-02-17 11:56 – Updated: 2025-02-19 08:29
VLAI?
Title
Insecure storage of sensitive information in MobaXTerm <25.0.
Summary
The vulnerability exists in the password storage of Mobateks MobaXterm in versions below 25.0. MobaXTerm uses an initialisation vector (IV) consisting only of zero bytes and a master key to encrypt each password individually. In the default configuration, on opening MobaXTerm, the user is prompted for their password. A derivative of the password is used as the master key. As both the master key and the IV are the same for each stored password, the AES CFB ciphertext depends only on the plaintext (the password). The static IV and master key make it easier to obtain sensitive information and to decrypt data when it is stored at rest.
Severity ?
6.5 (Medium)
CWE
- CWE-1204 - Generation of Weak Initialization Vector (IV)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Credits
cirosec
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CVE-2026-25998 (GCVE-0-2026-25998)
Vulnerability from cvelistv5 – Published: 2026-02-19 15:51 – Updated: 2026-02-20 15:42
VLAI?
Title
strongMan vulnerable to private credential recovery due to key and counter reuse
Summary
strongMan is a management interface for strongSwan, an OpenSource IPsec-based VPN. When storing credentials in the database (private keys, EAP secrets), strongMan encrypts the corresponding database fields. So far it used AES in CTR mode with a global database key. Together with an initialization vector (IV), a key stream is generated to encrypt the data in the database fields. But because strongMan did not generate individual IVs, every database field was encrypted using the same key stream. An attacker that has access to the database can use this to recover the encrypted credentials. In particular, because certificates, which have to be considered public information, are also encrypted using the same mechanism, an attacker can directly recover a large chunk of the key stream, which allows them to decrypt basically all other secrets especially ECDSA private keys and EAP secrets, which are usually a lot shorter. Version 0.2.0 fixes the issue by switching to AES-GCM-SIV encryption with a random nonce and an individually derived encryption key, using HKDF, for each encrypted value. Database migrations are provided to automatically re-encrypt all credentials.
Severity ?
CWE
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| strongswan | strongMan |
Affected:
< 0.2.0
|
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Mitigation
Phase: Implementation
Description:
- Different cipher modes have different requirements for their IVs. When choosing and implementing a mode, it is important to understand those requirements in order to keep security guarantees intact. Generally, it is safest to generate a random IV, since it will be both unpredictable and have a very low chance of being non-unique. IVs do not have to be kept secret, so if generating duplicate IVs is a concern, a list of already-used IVs can be kept and checked against.
- NIST offers recommendations on generation of IVs for modes of which they have approved. These include options for when random IVs are not practical. For CBC, CFB, and OFB, see [REF-1175]; for GCM, see [REF-1178].
CAPEC-20: Encryption Brute Forcing
An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.
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).