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Cisco IOS SIP Packet Handling Reload Denial of Service
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Secunia Advisory:
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SA23978
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Release Date:
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2007-01-31
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Last Update:
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2007-02-05
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Popularity:
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10,745 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Cisco IOS 12.x
Cisco IOS R12.x
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Subscribe:
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| CVE reference: | CVE-2007-0648
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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 when handling certain SIP packets and can be exploited to cause the device to reload via a specially crafted packet sent to port 5060.
Successful exploitation requires that the device supports voice and is not configured for SIP.
Please see the vendor's advisory for a list of affected products and versions.
Solution:
Update to a fixed version (please see the vendor's advisory for details).
Provided and/or discovered by:
Reported to the vendor by a customer.
Changelog:
2007-01-31: Added link to US-CERT.
2007-02-05: Added CVE reference.
Original Advisory:
Cisco Systems:
http://www.cisco.com/warp/public/707/cisco-sa-20070131-sip.shtml
http://www.cisco.com/warp/public/707/cisco-air-20070131-sip.shtml
Other References:
US-CERT VU#438176:
http://www.kb.cert.org/vuls/id/438176
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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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