Executive Summary
Summary | |
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Title | Cisco NX-OS Software Crafted DHCPv4 Packet Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20161005-dhcp1 | First vendor Publication | 2016-10-05 |
Vendor | Cisco | Last vendor Modification | 2016-10-05 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.8 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the implementation of the DHCPv4 relay agent and smart relay agent in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of crafted DHCPv4 offer packets. An attacker could exploit this vulnerability by sending crafted DHCPv4 offer packets to an affected device. An exploit could allow the attacker to cause the DHCP process or device to crash. This vulnerability can be exploited using IPv4 packets only. The vulnerability can be triggered by crafted DHCP packets processed by a DHCP relay agent or smart relay agent listening on the device using the IPv4 broadcast address or the IPv4 unicast address of any interface configured on a device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-dhcp1 BEGIN PGP SIGNATURE Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJX9RRvAAoJEK89gD3EAJB5aJAP/iqU3jgnj8/ZfH9bDtTZzo/J lgymui54AgbK11rUmqDyzsPctHTzb/RONGNvozEMT29MgTw/5YKXGdEEdJpEcTRB n0btkc/5HJM0kS0wICLCQgwNdlmj+ERYuNIV8q9VwyPOSKoNQy/kKt4QRyzc2lbI E8nnrEyZZHYtt/eP7Ltgpy2YnXsP+ejzc8jPTYQXJiPById/mOINSjo+iw5Pr6O1 0L2De/WsiDHsWyBnOlljktupLWwxwVSNIYGO6nibMc7R878oB7MQs5/OymQq1CGH b2ed5nROf5QtFdo+pgRCjXw/87j40BNr1IKcCd7U9fzvzIGxF5JxDQ8lyzEJ5N/5 DOOlfa0CtQ4qwaP6lwOsO1mNrUjcNCDugmICucNo01VGyAReMLy+4vQBmD9AkByU cq51vQXe5C3PyU4quaDK15Ix1DM5Q3FJKRyaJ+6ScA0I27L9BSel7XamI9+IrD3N S9VKpjcZvXSauwfyQlnKilBNiQxbzQpt6a8UcX/EOx/sEu+G+fa64gPRcdi6nTKQ RTj+iqttSRJujQqYWVB1/5xK/VhNu3T8J7KssmS/gFXxmpCGebZLNT9ooiQQk2UY a6gaFcsNladvhr4Y8nltV+jLpCal9vD8og7B6dd0EU8XMvUxTTftP/xJANNghCa4 ks2Moj0fJ6Nfk7DYr8GW =uwR9 END PGP SIGNATURE _______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com |
Original Source
Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...) |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-399 | Resource Management Errors |
CPE : Common Platform Enumeration
Snort® IPS/IDS
Date | Description |
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2016-03-14 | Cisco NX-OS DHCP option parsing denial of service attempt RuleID : 37426 - Revision : 2 - Type : SERVER-OTHER |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2016-11-22 | Name : The remote device is missing a vendor-supplied security patch. File : cisco-sa-20161005-dhcp1-nxos.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2016-11-23 13:25:43 |
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2016-10-14 00:25:22 |
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2016-10-06 09:25:22 |
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2016-10-05 21:21:57 |
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