CVE-2022-45440
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I. Basic Information for CVE-2022-45440
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability exists in the FTP server of the Zyxel AX7501-B0 firmware prior to V5.17(ABPC.3)C0, which processes symbolic links on external storage media. A local authenticated attacker with administrator privileges could abuse this vulnerability to access the root file system by creating a symbolic link on external storage media, such as a USB flash drive, and then logging into the FTP server on a vulnerable device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zyxel AX7501-B0 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel AX7501-B0是中国合勤（Zyxel）公司的一个路由器。 Zyxel AX7501-B0 V5.17(ABPC.3)C0之前版本存在安全漏洞。攻击者利用该漏洞通过在外部存储介质（如USB闪存驱动器）上创建符号链接，然后登录到易受攻击设备上的FTP服务器，从而访问根文件系统。
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 |
|---|---|---|---|---|
| Zyxel | AX7501-B0 firmware | < V5.17(ABPC.3)C0 | - |
II. Public POCs for CVE-2022-45440
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: AX7501-B0 firmware
Same weakness: CWE-59
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V. Comments for CVE-2022-45440
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