VDB-114204 · CVE-2018-0209 · BID 103406

Cisco 550X Series Stackable Managed Switch SNMP input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Cisco 550X Series Stackable Managed Switch. It has been declared as problematic. This affects an unknown part of the component SNMP. The manipulation results in input validation. This vulnerability is cataloged as CVE-2018-0209. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cisco 550X Series Stackable Managed Switch (version now known). Affected is some unknown processing of the component SNMP. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem communication channel through the Cisco 550X Series Stackable Managed Switches could allow an authenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device nay need to be manually reloaded to recover. The vulnerability is due to lack of proper input throttling of ingress SNMP traffic over an internal interface. An attacker could exploit this vulnerability by sending a crafted, heavy stream of SNMP traffic to the targeted device. An exploit could allow the attacker to cause the device to reload unexpectedly, causing a DoS condition. Cisco Bug IDs: CSCvg22135.

The bug was discovered 03/07/2018. The weakness was shared 03/08/2018 with Cisco (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2018-0209 since 11/27/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. Required for exploitation is a authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 01/11/2020).

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 $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103406†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Cisco

Name

550X Series Stackable Managed Switch

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
03/07/2018 +100 days 🔍
03/07/2018 +0 days 🔍
03/08/2018 +1 days 🔍
03/08/2018 +0 days 🔍
03/09/2018 +1 days 🔍
01/11/2020 +673 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securityfocus.com⛔
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-0209 (🔍)
GCVE (CVE): GCVE-0-2018-0209
GCVE (VulDB): GCVE-100-114204
SecurityFocus: 103406 - Cisco 550X Series Stackable Managed Switches CVE-2018-0209 Denial of Service Vulnerability

Entryinfo

Created: 03/09/2018 07:46
Updated: 01/11/2020 13:46
Changes: 03/09/2018 07:46 (57), 01/11/2020 13:46 (5)
Complete: 🔍
Cache ID: 216::103