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CVE-2019-5591

KEV EPSS 48.36% · P98
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I. Basic Information for CVE-2019-5591

Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet FortiOS 信息泄露漏洞
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 6.2.0及之前版本中存在安全漏洞。攻击者可通过模拟LDAP服务器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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
FortinetFortinet FortiOS FortiOS 6.2.0 and below. -

II. Public POCs for CVE-2019-5591

#POC DescriptionSource LinkShenlong Link
1The default configuration of LDAP on FortiOS v6.0.x to v6.2.0 does not check server identity for LDAP/S leading to MITM attacks. This PoC demos full exfiltration of credentials sent on the local subnet to an LDAP server that is easily impersonated. https://github.com/ayewo/fortios-ldap-mitm-poc-CVE-2019-5591POC Details
2The FortiGate LDAP configuration was detected to be insecure due to missing ca-cert, secure LDAPS, or server-identity-check, potentially exposing LDAP communications to credential interception or man-in-the-middle attacks under specific network conditions. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-5591.yamlPOC Details
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III. Intelligence Information for CVE-2019-5591

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IV. Related Vulnerabilities

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