Executive Summary
Summary | |
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Title | Cisco NX-OS Software Malformed DHCPv4 Packet Denial of Service Vulnerability |
Informations | |||
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Name | cisco-sa-20161005-dhcp2 | 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 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 malformed DHCPv4 packets. An attacker could exploit this vulnerability by sending malformed DHCPv4 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 malformed DHCP packets processed by a DHCP relay agent listening on the device, using the IPv4 broadcast address or 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-dhcp2 BEGIN PGP SIGNATURE Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJX9RRvAAoJEK89gD3EAJB5MVEP/3Vx+EYmJR06nN7u3bJ09QcL rCM8WkIN1l65nJOsefcneDlPoLDnob31KznL81u7gXtXuOptUD2sT0TsDePwKatT otvhVQEu10tzOmDwStDjhNO6q5fsrExFMrdD/GwU8ZSWUlffWfMT22Ov4o31qck1 rMtE5Qs7G9oaSVNA+CkXcQijdhnkgBs3C51CumSHB1R7HkZcNJdPU7bOlU5lgb9p 1kzg60E4owVThLiGoG9CwBYoW9EhhkiUQCDiPui/cyp2SFuUeGdcz+hpX48Uf/0 +/2t2cqmibN44Yo/1NJytmEam4HhjF+rpPZBO2R/1/Woggh5id8FAGFmg2prcyM8Q 4/o9PZHFI61UrXAFIHyvEJGdrU5hCrGHaoOZMoY+TwCdmw+bvvYjGu1uSzK6An0L PDzJkLVSwogr16dECgESt3BEA819it9r9M87c+oRp020aniWZnne39xuXnCA6oN1 3+183bnFKYpgdYrlDLNICOi2MdWsEAjxPFMI/zkHlQtqus4vkuWtSPkiC6+AlGeZ 9z8YEbpjFhfZjlhqnXd9jLNQLAxFGAGOcz3vndjNsIwLQmaN67+EIbtt30lxJ0Bq JmtrsojSOx6VsH9JigAOxznLzF//R4reNopiVZqwvIAHpbE3CXjSmmp5601QPVK7 nsoocohg8L6C9yNvdQSU =jkG4 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 zero length DHCP VPN suboption denial of service attempt RuleID : 37414 - 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-dhcp2-nxos.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2016-11-23 13:25:43 |
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2016-10-08 00:24:51 |
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2016-10-06 17:25:22 |
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2016-10-05 21:21:58 |
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