Public Vulnerability Reports

3Com OfficeConnect Wireless 11g AP Information Disclosure Vulnerability



The 3Com OfficeConnect Wireless 11g Access Point provides users with
access to network resources, the Internet, and e-mail at speeds up to
54 Mbps and at distances up to 100 meters (328 feet). More information
about the product is available at


Remote exploitation of an input validation vulnerability in 3Com Corp.'s
OfficeConnect Wireless 11g Access Point allows attackers to glean
sensitive router information.

The 3Com OfficeConnect Wireless 11g Access Point (AP) provides an
administrative interface via a web server accessible on port 80. This
interface is exposed by default on the internal ethernet interface and
the wireless interface, and it is also possible to expose it on the
external ethernet interface. The problem specifically exists due to
insufficient privilege checks when accessing various URLs without going
through the formal logon process. An unauthenticated attacker can glean
sensitive information from the device via the following URLs:


These URLs will expose the administrative username and password in clear
text, the WEP key and SSID, and the router log file respectively.


Successful exploitation allows remote attackers to glean sensitive
router information, allowing the attacker to gain full control of the
device. Compromise of the Access Point (AP) allows an attacker to
potentially redirect traffic, access nodes behind the AP that are
otherwise unaddressable and potentially monitor traffic from a remote
location. This can lead to further compromise of other computers.


It has been reported that firmware version 1.00.08 shipped on the 3Com
OfficeConnect Wireless 11g Access Point is vulnerable. It is suspected
that earlier versions are also vulnerable.


iDEFENSE is currently unaware of any workarounds for this issue.


Firmware version 1.03.07A for 3CRWE454G72 has been released to addresses
the vulnerability.


The Common Vulnerabilities and Exposures (CVE) project has assigned the
names CAN-2005-0112 to these issues. This is a candidate for inclusion
in the CVE list (, which standardizes names for
security problems.


12/21/2004   Initial vendor notification - No response
01/06/2005   Secondary vendor notification
01/07/2005   Initial vendor response
01/20/2004   Public disclosure


Patrik, is credited with this discovery.

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Copyright © 2005 Verisign, Inc.

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