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CVE-2021-31796

Status Candidate

Overview

An inadequate encryption vulnerability discovered in CyberArk Credential Provider before 12.1 may lead to Information Disclosure. An attacker may realistically have enough information that the number of possible keys (for a credential file) is only one, and the number is usually not higher than 2^36.

Related Files

CyberArk Credential File Insufficient Effective Key Space
Posted Sep 2, 2021
Authored by Klayton Monroe | Site korelogic.com

CyberArk Credential Providers and possibly other Vault components use credential files to store usernames and encrypted passwords. Under certain conditions, the effective key space used to encrypt the passwords is significantly reduced. For an attacker who understands the key derivation scheme and encryption mechanics, full access to the information used to derive the encryption key is sufficient to reduce effective key space to one. With partial access, the effective key space can vary depending on the information available, and a number of those variations are unlikely to withstand brute force attacks. Versions prior to 12.1 are affected.

tags | advisory
advisories | CVE-2021-31796
SHA-256 | 5892fd05072b614b7847d3f43b864bd8335e297210e52ccf34c86d2321cd721f
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