CVE-2014-6435 Missing authorization in n/a

High 7.5 Published Updated

Remote attackers can reset WAN connectivity on Aztech DSL modems by accessing an unauthenticated CGI script, causing a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2014-6435?

CVE-2014-6435 is a high-severity missing authorization vulnerability in n/a, published on 12 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.

Weakness: CWE-287

Which versions are affected by CVE-2014-6435?

It affects 3 products.

Products include Aztech Adsl Dsl5018en \(1t1r\) Firmware, Aztech Dsl705e Firmware, Aztech Dsl705eu Firmware.

How do I fix CVE-2014-6435?

No fix has been published for CVE-2014-6435 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2014-6435 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2014-6435 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-46w7-rq7x-9wg9.

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