VAR-200508-0235

Vulnerability from variot - Updated: 2025-04-03 22:25

B-FOCuS Router 312+ allows remote attackers to bypass authentication and gain unauthorized access via a direct request to firmwarecfg. An attacker can disclose the administrator password through the Web interface of the device. This can lead to a complete compromise of the router. B-FOCuS Router 312+ router can provide users with reliable and secure ADSL2+ connection. By default, the management interface of the eci router is available via HTTP, which is protected by a login screen. But an attacker can easily bypass the login screen by visiting the firmwarecfg page in the unprotected cgi-bin directory and download the router's current settings, including plaintext connection and management passwords.


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TITLE: ECI B-FOCuS Router firmwarecfg Missing Access Control Restrictions

SECUNIA ADVISORY ID: SA16205

VERIFY ADVISORY: http://secunia.com/advisories/16205/

CRITICAL: Moderately critical

IMPACT: Security Bypass

WHERE:

From local network

OPERATING SYSTEM: B-FOCuS Router 312+ http://secunia.com/product/5436/

DESCRIPTION: D.is.evil has reported a security issue in B-FOCuS Router 312+, which can exploited by malicious people to bypass certain security restrictions.

The problem is caused due to the lack of access controls on the "/cgi-bin/firmwarecfg" page of the router's web management interface. This can reportedly be exploited to retrieve sensitive information such as the current router settings, connection and management passwords, or to cause a DoS by resetting the router constantly.

PROVIDED AND/OR DISCOVERED BY: D.is.evil


About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/

Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.


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