VDB-112208 · CVE-2018-0094 · BID 102787

Cisco UCS Central Software IPv6 Packet resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco UCS Central Software. This affects an unknown function of the component IPv6 Packet Handler. Such manipulation leads to resource consumption. This vulnerability is listed as CVE-2018-0094. The attack may be performed from remote. There is no available exploit. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Cisco UCS Central Software (Virtualization Software) (unknown version) and classified as problematic. Affected by this issue is an unknown code block of the component IPv6 Packet Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

A vulnerability in IPv6 ingress packet processing for Cisco UCS Central Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high CPU utilization on the targeted device. The vulnerability is due to insufficient rate limiting protection for IPv6 ingress traffic. An attacker could exploit this vulnerability by sending the affected device a high rate of IPv6 packets. Successful exploitation could allow the attacker to cause a DoS condition due to CPU and resource constraints. Cisco Bug IDs: CSCuv34544.

The bug was discovered 01/17/2018. The weakness was presented 01/18/2018 as cisco-sa-20180117-ucs as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2018-0094 since 11/27/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316184 (Cisco UCS Central Software IPv6 Denial of Service Vulnerability (cisco-sa-20180117-ucs)).

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102787†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
01/17/2018 +51 days 🔍
01/17/2018 +0 days 🔍
01/18/2018 +1 days 🔍
01/18/2018 +0 days 🔍
01/19/2018 +1 days 🔍
02/01/2021 +1109 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180117-ucs
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0094 (🔍)
GCVE (CVE): GCVE-0-2018-0094
GCVE (VulDB): GCVE-100-112208
SecurityFocus: 102787 - Cisco UCS Central Software CVE-2018-0094 Denial of Service Vulnerability
SecurityTracker: 1040249

Entryinfo

Created: 01/19/2018 07:55
Updated: 02/01/2021 10:10
Changes: 01/19/2018 07:55 (63), 12/24/2019 08:36 (4), 02/01/2021 10:10 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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