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CVE-2021-26102

CVSS 9.8 · Critical EPSS 60.81% · P98
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I. Basic Information for CVE-2021-26102

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用基本弱点进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
Avfirewalls FortiWAN 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avfirewalls FortiWAN是美国Avfirewalls公司的一个网络设备。用于平衡多个WAN连接上的Internet和Intranet流量。 FortiWAN 存在授权问题漏洞，该漏洞源于身份验证过程中的错误。以下产品及版本受到影响：FortiWAN: before 5.1.1。
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
FortinetFortiWAN 4.5.0 ~ 4.5.7 -

II. Public POCs for CVE-2021-26102

#POC DescriptionSource LinkShenlong Link
1PoC of FortiWAN auth bypass (https://www.fortiguard.com/psirt/FG-IR-21-048)https://github.com/SleepyCofe/CVE-2021-26102POC Details
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III. Intelligence Information for CVE-2021-26102

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Same Patch Batch · Fortinet · 2024-12-19 · 7 CVEs total

CVE-2020-159348.6 HIGHFortinet FortiClient 安全漏洞
CVE-2021-325897.7 HIGHFortinet FortiManager 和 Fortinet FortiAnalyzer 资源管理错误漏洞
CVE-2021-261157.6 HIGHAvfirewalls FortiWAN 操作系统命令注入漏洞
CVE-2021-260936.6 MEDIUMFortinet FortiWLC 缓冲区错误漏洞
CVE-2020-128205.4 MEDIUMFortinet FortiOS 缓冲区错误漏洞
CVE-2020-128195.4 MEDIUMFortiOS 安全漏洞

IV. Related Vulnerabilities

Same product: FortiWAN
Same vendor: Fortinet
Same weakness: CWE-305

V. Comments for CVE-2021-26102

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