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CVE-2019-15703

Quick assessment

Affected
Fortinet Fortinet FortiOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fortinet FortiOS是美国飞塔（Fortinet）公司的一套专用于FortiGate网络安全平台上的安全操作系统。该系统为用户提供防火墙、防病毒、IPSec/SSLVPN、Web内容过滤和反垃圾邮件等多种安全功能。 Fortinet FortiOS 6.2.1版本、6.2.0版本、6.0.8及之前版本中的确定性（伪随机）数产生器（PRNG）存在安全特征问题漏洞。攻击者可利用该漏洞获取敏感信息。

AI Predicted 6.5 Difficulty: Theoretical EPSS 1.00% · P61
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I. Basic Information for CVE-2019-15703

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiOS 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiOS是美国飞塔（Fortinet）公司的一套专用于FortiGate网络安全平台上的安全操作系统。该系统为用户提供防火墙、防病毒、IPSec/SSLVPN、Web内容过滤和反垃圾邮件等多种安全功能。 Fortinet FortiOS 6.2.1版本、6.2.0版本、6.0.8及之前版本中的确定性（伪随机）数产生器（PRNG）存在安全特征问题漏洞。攻击者可利用该漏洞获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fortinet Fortinet FortiOS 6.2.1 -

II. Public POCs for CVE-2019-15703

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III. Intelligence Information for CVE-2019-15703

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Vendor Advisories for CVE-2019-15703 (1)

IV. Related Vulnerabilities

Same product: Fortinet FortiOS
Same vendor: Fortinet

V. Comments for CVE-2019-15703

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