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CVE-2019-6693

Quick assessment

Affected
Fortinet FortiGate
Exploitation
Confirmed exploitation in the wild; remediate immediately
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 5.6.10及之前版本、6.0.6及之前版本和6.2.0版本中存在安全漏洞，该漏洞源于程序使用硬编码加密密钥来加密配置备份文件中的敏感信息。攻击者可利用该漏洞访问备份文件，解密敏感数据。

AI Predicted 5.9 Difficulty: Trivial KEV · Ransomware EPSS 6.64% · P94

Affected Version Matrix 3

VendorProduct Version RangeStatus
Fortinet FortiGate 5.6.9 and below affected
6.0.5 and below affected
6.2.0 affected
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I. Basic Information for CVE-2019-6693

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Use of a hard-coded cryptographic key to cipher sensitive data in FortiOS configuration backup file may allow an attacker with access to the backup file to decipher the sensitive data, via knowledge of the hard-coded key. The aforementioned sensitive data includes users' passwords (except the administrator's password), private keys' passphrases and High Availability password (when set).
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 信任管理问题漏洞
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 5.6.10及之前版本、6.0.6及之前版本和6.2.0版本中存在安全漏洞，该漏洞源于程序使用硬编码加密密钥来加密配置备份文件中的敏感信息。攻击者可利用该漏洞访问备份文件，解密敏感数据。
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

Vendor Product Affected Versions CPE Subscribe
Fortinet FortiGate 5.6.9 and below -

II. Public POCs for CVE-2019-6693

# POC Description Source Link Shenlong Link
1 Decrypt FortiGate configuration secrets https://github.com/gquere/CVE-2019-6693 POC Details
2 Decrypt reversible secrets encrypted using the default hardcoded key related to CVE-2020-9289 on FortiAnalyzer/FortiManager (the only difference with CVE-2019-6693 is the encryption routine). https://github.com/synacktiv/CVE-2020-9289 POC Details
3 An authorized remote user with access or knowledge of the standard encryption key can gain access and decrypt the FortiOS backup files and all non-administator passwords, private keys and High Availability passwords. https://github.com/saladandonionrings/cve-2019-6693 POC Details
4 None https://github.com/Real4XoR/CVE-2019-6693 POC Details
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III. Intelligence Information for CVE-2019-6693

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Vendor Advisories for CVE-2019-6693 (1)

Same Patch Batch · Fortinet · 2019-11-21 · 4 CVEs total

CVE-2019-17650 Fortinet FortiClient 操作系统命令注入漏洞
CVE-2018-9195 Fortinet FortiOS和Fortinet FortiClient 信任管理问题漏洞
CVE-2019-15704 Fortinet FortiClient 信息泄露漏洞

IV. Related Vulnerabilities

Same product: FortiGate
Same vendor: Fortinet

V. Comments for CVE-2019-6693

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