CVE-2019-15703
Last modified
CVE-2019-15703 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortios | <= 5.6.9 |
| Fortinet | Fortios | >= 6.0.0, < 6.0.9 |
| Fortinet | Fortios | >= 6.2.0, < 6.2.3 |
References
- https://fortiguard.com/psirt/FG-IR-19-186Vendor Advisory
- https://fortiguard.com/psirt/FG-IR-19-186Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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