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Cisco Aironet Denial of Service and Enumeration of User Accounts

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Release Date:  2003-07-29    Views:  9,718

Secunia Advisory SA9372

Where:

From local network

Impact:

Exposure of system information, DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Two vulnerabilities have been identified in Cisco Aironet 1100, 1200, and 1400 running IOS. These vulnerabilities could be exploited to enumrate users or cause a Denial of Service.

1) When logging in via telnet, Cisco Aironet returns different error messages depending on whether a username is valid or invalid. This can be exploited to enumerate valid accounts.

2) Cisco Aironet does not handle malicious HTTP requests properly. This allows a malicious person to crash the device causing it to reload.

The following versions are vulnerable:

Cisco Aironet Wireless Access Point AP1100 series running IOS versions:
12.2(4)JA, 12.2(4)JA1, 12.2(8)JA, 12.2(11)JA
Cisco Aironet Wireless Access Point AP1200 series running IOS versions:
12.2(8)JA, 12.2(11)JA
Cisco Aironet Wireless Bridge AP1400 series series running IOS versions:
12.2(11)JA

Cisco Aironet devices running VxWorks are not affected.


Solution:
Cisco IOS version 12.2(11)JA1 is not vulnerable. It is available from:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Reda Zitouni, VIGILANTe

Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20030728-ap1x00.shtml
http://www.cisco.com/warp/public/707/cisco-sn-20030724-ios-enum.shtml

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Cisco Aironet Denial of Service and Enumeration of User Accounts

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