PT-2014-7877 · Zyxel · Zyxel Sbg-3300 Security Gateway

Mirko Casadei · Published 2014-10-04 · Updated 2017-09-08 · CVE-2014-7278

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions ZyXEL SBG-3300 Security Gateway versions 1.00(AADY.4)C0 and earlier

Description The issue allows remote attackers to cause a denial of service, resulting in a persistent web-interface outage. This is achieved by injecting JavaScript code into the "welcome message" form data, which is improperly handled and used for the loginMsg variable's value.

Recommendations For ZyXEL SBG-3300 Security Gateway versions 1.00(AADY.4)C0 and earlier, consider restricting access to the login page as a temporary workaround until a patch is available. Avoid using the loginMsg variable in the login page's form data until the issue is resolved.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2014-7278

Affected Products

Zyxel Sbg-3300 Security Gateway

References · 5

• 🔥 http://archives.neohapsis.com/archives/bugtraq/2014-10/0025.html · Exploit
• 🔥 http://packetstormsecurity.com/files/128550/ZyXEL-SBG-3300-Security-Gateway-Denial-Of-Service.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2014-7278 · Security Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/96892 · Note
• http://seclists.org/fulldisclosure/2014/Oct/20 · Note