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lemur

Netflix Lemur before version 1.3.2 used insufficiently random values when generating default credentials. The insufficiently random values may allow an attacker to guess the credentials and gain access to resources managed by Lemur.

Netflix Lemur is an open-source certificate management tool used to automate the issuance and management of TLS certificates and other credentials. CVE-2023-30797 identifies a vulnerability in Lemur versions before 1.3.2 where default credentials are generated using insufficiently random values, classified under CWE-330 (Use of Insufficiently Random Values). This cryptographic weakness means that the randomness source used to create default passwords or tokens is predictable or has low entropy, enabling attackers to guess or brute-force these credentials remotely without requiring authentication or user interaction. The vulnerability has a CVSS 3.1 base score of 7.5, reflecting its network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and high confidentiality impact (C:H) but no impact on integrity or availability. Exploiting this flaw could allow unauthorized access to Lemur-managed resources, potentially exposing sensitive certificate data or enabling further lateral movement within an environment. No public exploits or active exploitation campaigns have been reported to date. The vulnerability underscores the importance of using cryptographically secure random number generators when creating credentials, especially in security-critical applications like certificate management. The fix involves updating Lemur to version 1.3.2 or later, where credential generation uses sufficiently random values, eliminating the predictability.

Detailed information about CVE-2023-30797: CWE-330 Use of Insufficiently Random Values in Netflix Lemur affecting Netflix Lemur. Get real-time updates, technica

CVE-2023-30797: CWE-330 Use of Insufficiently Random Values in Netflix Lemur - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-30797: CWE-330 Use of Insufficiently Random Values in Netflix Lemur

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