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Cisco IOS DLSw Denial Of Service Vulnerability
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Secunia Advisory:
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SA23697
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Release Date:
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2007-01-11
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Last Update:
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2007-01-17
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Popularity:
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9,315 views
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Critical:
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Less critical
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Impact:
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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 IOS 11.x
Cisco IOS 12.x
Cisco IOS R11.x
Cisco IOS R12.x
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| CVE reference: | CVE-2007-0199
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Description:
A vulnerability has been reported in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the handling of DLSw messages within the DLSw feature of Cisco IOS. This can be exploited to reload the device via a specially crafted DLSw message with an invalid option.
Successful exploitation requires that the DLSw feature is enabled and that a DLSw connection is first established.
The vulnerability reportedly affects all products running IOS software versions 11.0 through 12.4, which have the DLSw feature enabled. Other versions may also be affected.
Solution:
Apply fix or update to the latest version (see vendor advisory for details).
Provided and/or discovered by:
The vendor credits Martyn Ruks of MWR InfoSecurity.
Changelog:
2007-01-17: Added CVE reference.
Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20070110-dlsw.shtml
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About this Secunia Advisory
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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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