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Cisco IOS Multiple Vulnerabilities
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Secunia Advisory:
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SA23867
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Release Date:
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2007-01-25
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Last Update:
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2007-01-30
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Popularity:
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13,197 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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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 10.x
Cisco IOS 11.x
Cisco IOS 12.x
Cisco IOS R11.x
Cisco IOS R12.x
Cisco IOS XR 3.x
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| CVE reference: | CVE-2007-0479
CVE-2007-0480
CVE-2007-0481
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Description:
Some vulnerabilities have been reported in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) An error exists in the processing of IP options in various IP packets (including some ICMP requests, PIMv2, PGM, and URD requests). This can be exploited to restart the device or ipv4_io process or potentially execute arbitrary code via a specially crafted IP Option field in a packet sent to a physical or virtual IPv4 address configured on the device.
2) A memory leak error in the processing of TCP packets can be exploited to cause the device to consume a large amount of memory over time and may lead to a degraded service via a specially crafted packet sent to a physical or virtual IPv4 address configured on the device.
3) An error in the processing of IPv6 Type 0 Routing headers can be exploited to crash the device via a specially crafted packet sent to an IPv6 address defined on the device.
Successful exploitation of this vulnerability requires that IPv6 is enabled.
Solution:
Update to the latest version (please see the vendor's advisory for details).
Provided and/or discovered by:
1) Reported by the vendor.
2) Reported by the vendor.
3) Arnaud Ebalard, EADS Corporate Research Center.
Changelog:
2007-01-30: Added CVE reference.
Original Advisory:
Cisco Systems:
http://www.cisco.com/warp/public/707/cisco-sa-20070124-bundle.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20070124-crafted-ip-option.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20070124-crafted-tcp.shtml
http://www.cisco.com/warp/public/707/cisco-sa-20070124-IOS-IPv6.shtml
Other References:
US-CERT VU#217912:
http://www.kb.cert.org/vuls/id/217912
US-CERT VU#274760:
http://www.kb.cert.org/vuls/id/274760
US-CERT VU#341288:
http://www.kb.cert.org/vuls/id/341288
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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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