CVE-2019-15703: fortinet fortinet fortios Insufficient Entropy

Vulnerability summary

CVE-2019-15703 is a high (CVSS 7.5) Insufficient Entropy vulnerability in fortinet fortinet fortios. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities.

Timeline

1. 24-10-2019
   PublishedVulnerability first disclosed.
2. 25-10-2024
   Last modifiedVulnerability information updated.

Description

An Insufficient Entropy in PRNG vulnerability in Fortinet FortiOS 6.2.1, 6.2.0, 6.0.8 and below for device not enable hardware TRNG token and models not support builtin TRNG seed allows attacker to theoretically recover the long term ECDSA secret in a TLS client with a RSA handshake and mutual ECDSA authentication via the help of flush+reload side channel attacks in FortiGate VM models only.

• CWE-331Insufficient EntropyThe product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.