Vault Enterprise <=1.13.1: HSM Padding Oracle on CKM_AES_CBC_PAD/CBC Attack
CVE-2023-2197 Published on May 1, 2023
Vault Enterprise Vulnerable to Padding Oracle Attacks When Using a CBC-based Encryption Mechanism with a HSM
HashiCorp Vault Enterprise 1.13.0 up to 1.13.1 is vulnerable to a padding oracle attack when using an HSM in conjunction with the CKM_AES_CBC_PAD or CKM_AES_CBC encryption mechanisms. An attacker with privileges to modify storage and restart Vault may be able to intercept or modify cipher text in order to derive Vaults root key. Fixed in 1.13.2
Vulnerability Analysis
CVE-2023-2197 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Inadequate Encryption Strength
The software stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. A weak encryption scheme can be subjected to brute force attacks that have a reasonable chance of succeeding using current attack methods and resources.
Products Associated with CVE-2023-2197
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Affected Versions
HashiCorp Vault Enterprise:- Version 1.13.0, <= 1.13.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.