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Cisco Aironet Denial of Service and Enumeration of User Accounts
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Secunia Advisory:
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SA9372
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Release Date:
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2003-07-29
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Popularity:
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7,471 views
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Critical:
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Less critical
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Impact:
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Exposure of system information
DoS
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | Cisco Aironet 1100 Series Access Point
Cisco Aironet 1200 Series Access Point
Cisco Aironet 1400 Series Wireless Bridge
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| CVE reference: | CVE-2003-0511
CVE-2003-0512
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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:
http://www.cisco.com/public/sw-center/sw-usingswc.shtml
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
Other References:
http://www.vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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