CVE-2019-9955 Information

Description

On Zyxel ATP200 ATP500 ATP800 USG20-VPN USG20W-VPN USG40 USG40W USG60 USG60W USG110 USG210 USG310 USG1100 USG1900 USG2200-VPN ZyWALL 110 ZyWALL 310 ZyWALL 1100 devices the security firewall login page is vulnerable to Reflected XSS via the unsanitized ‘mp_idx’ parameter.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

http://packetstormsecurity.com/files/152525/Zyxel-ZyWall-Cross-Site-Scripting.html http://seclists.org/fulldisclosure/2019/Apr/22 https://www.exploit-db.com/exploits/46706/ https://www.securitymetrics.com/blog/Zyxel-Devices-Vulnerable-Cross-Site-Scripting-Login-page https://www.zyxel.com/support/reflected-cross-site-scripting-vulnerability-of-firewalls.shtml

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1