A vulnerability was found in Netgear DG632 3.4.0 Ap (Wireless LAN Software) and classified as critical. Affected by this issue is an unknown code of the component Administrative Web Interface. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

The administrative web interface on the Netgear DG632 with firmware 3.4.0_ap allows remote attackers to cause a denial of service (web outage) via an HTTP POST request to cgi-bin/firmwarecfg.

The weakness was shared 06/30/2009 (Website). The advisory is available at tomneaves.co.uk. This vulnerability is handled as CVE-2009-2256 since 06/29/2009. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Tom Neaves and been published before and not just after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (8964). The entries 48796 and 48795 are related to this item.

Productinfo

Type

• Wireless LAN Software

Vendor

• Netgear

Name

• DG632

Version

• 3.4.0 Ap

License

• commercial

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CPE 2.2info

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