CVE-2019-16155
Quick assessment
Affected
Fortinet Fortinet FortiClientLinux
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 FortiClient是美国飞塔（Fortinet）公司的一套移动终端安全解决方案。该方案与FortiGate防火墙设备连接时可提供IPsec和SSL加密、广域网优化、终端合规和双因子认证等功能。 基于Linux平台的Fortinet FortiClient 6.2.1及之前版本中存在安全漏洞。攻击者可借助IPC套接字利用该漏洞提升权限。
Possible ATT&CK Techniques 3 AI
T1055 · Process Injection T1068 · Exploitation for Privilege Escalation T1615 · Group Policy Discovery
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I. Basic Information for CVE-2019-16155
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A privilege escalation vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to overwrite system files as root with arbitrary content through system backup file via specially crafted "BackupConfig" type IPC client requests to the fctsched process. Further more, FortiClient for Linux 6.2.2 and below allow low privilege user write the system backup file under root privilege through GUI thus can cause root system file overwrite.
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 FortiClient 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiClient是美国飞塔（Fortinet）公司的一套移动终端安全解决方案。该方案与FortiGate防火墙设备连接时可提供IPsec和SSL加密、广域网优化、终端合规和双因子认证等功能。 基于Linux平台的Fortinet FortiClient 6.2.1及之前版本中存在安全漏洞。攻击者可借助IPC套接字利用该漏洞提升权限。
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 FortiClientLinux | FortiClientLinux 6.2.1 and below | - |
|
II. Public POCs for CVE-2019-16155
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-16155 (1)
-
https://fortiguard.com/psirt/FG-IR-19-238 x_refsource_CONFIRM
Security Blog Posts for CVE-2019-16155 (1)
-
https://danishcyberdefence.dk/blog/forticlient_linux x_refsource_MISC
IV. Related Vulnerabilities
V. Comments for CVE-2019-16155
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