CVE-2022-45440

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.

CVSS v3.0 4.4 MEDIUM

4.4^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-wifi-credentials-and-improper-symbolic-links-of-ftp-for-ax7501-b0-cpe	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:*

Information

Published : 2023-01-16 18:15

Updated : 2023-01-25 07:07

NVD link : CVE-2022-45440

Mitre link : CVE-2022-45440

JSON object : View

CWE

CWE-552

Files or Directories Accessible to External Parties

Products Affected

zyxel

ax7501-b0
ax7501-b0_firmware

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4.4 /10