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Cisco PIX/ASA/FWSM WebSense URL Filtering Bypass
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Secunia Advisory:
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SA20044
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Release Date:
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2006-05-09
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Popularity:
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26,596 views
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Critical:
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Less critical
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Impact:
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Security Bypass
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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 Adaptive Security Appliance (ASA) 7.x
Cisco PIX 6.x
Cisco PIX 7.x
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| Software: | Cisco Firewall Services Module (FWSM) 2.x
Cisco Firewall Services Module (FWSM) 3.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
George D. Gal has reported a vulnerability in Cisco PIX/ASA/FWSM, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error within the handling of fragmented HTTP requests. This can be exploited to bypass Websense URL filtering and gain access to restricted websites via HTTP GET requests that are fragmented into multiple packets.
Successful exploitation requires that PIX, ASA, or FWSM are configured to use Websense/N2H2 for content filtering.
The vulnerability has been reported in the following products:
* Cisco PIX software version 6.3.x and older.
* Cisco PIX/ASA software version 7.x.
* Cisco FWSM software version 2.3 and 3.1.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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