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Net-NSCA-Client

Net::NSCA::Client versions through 0.009002 for Perl uses a poor random number generator.

Version v0.003 switched to use Data::Rand::Obscure instead of Crypt::Random for generation of a random initialisation vectors.

Data::Rand::Obscure uses Perl's built-in rand() function, which is not suitable for cryptographic functions.

CVE-2024-57854 concerns a cryptographic vulnerability in the DOUGDUDE Net::NSCA::Client Perl module, versions through 0.009002. The module switched in version 0.003 to using Data::Rand::Obscure instead of Crypt::Random for generating random initialization vectors (IVs). However, Data::Rand::Obscure internally uses Perl's built-in rand() function, which is not designed for cryptographic security and is considered a weak pseudo-random number generator (PRNG). This weakness is classified under CWE-338, indicating the use of a cryptographically weak PRNG. Initialization vectors are critical in cryptographic protocols to ensure randomness and prevent replay or prediction attacks. Using a weak PRNG for IV generation can allow attackers to predict IV values, potentially enabling cryptanalysis or replay attacks against encrypted or authenticated communications. The Net::NSCA::Client module is used in NSCA communications, commonly part of Nagios monitoring setups, which are widely deployed in IT infrastructure monitoring. Although no known exploits have been reported, the vulnerability presents a latent risk that could be exploited if attackers gain access to network traffic or the client environment. The absence of a CVSS score suggests the need for an expert severity assessment. The vulnerability affects all versions up to 0.009002, and no patches are currently linked, indicating that users must monitor for updates or implement manual mitigations. The weakness impacts confidentiality and integrity by undermining cryptographic randomness, and exploitation does not require user interaction but may require access to the client or network. The scope is limited to systems using this specific Perl module for NSCA communications.

Detailed information about CVE-2024-57854: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in DOUGDUDE Net::NSCA::Client affecting D

CVE-2024-57854: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in DOUGDUDE Net::NSCA::Client - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-57854: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in DOUGDUDE Net::NSCA::Client

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