VDB-237933 · CVE-2023-40709 · icsa-23-236-02

OPTO 22 SNAP PAC S1 R10.3b ICMP Request resource consumption

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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in OPTO 22 SNAP PAC S1 R10.3b and classified as problematic. This vulnerability affects unknown code of the component ICMP Request Handler. Performing a manipulation results in resource consumption. This vulnerability was named CVE-2023-40709. The attack may be initiated remotely. There is no available exploit. It is suggested to use restrictive firewalling.

Detailsinfo

A vulnerability classified as problematic has been found in OPTO 22 SNAP PAC S1 R10.3b. This affects an unknown part of the component ICMP Request Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

An adversary could crash the entire device by sending a large quantity of ICMP requests if the controller has the built-in web server enabled but does not have the built-in web server completely set up and configured for the SNAP PAC S1 Firmware version R10.3b

The weakness was presented 08/25/2023 as icsa-23-236-02. The advisory is shared at cisa.gov. This vulnerability is uniquely identified as CVE-2023-40709 since 08/18/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

It is possible to mitigate the weakness by firewalling .

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Productinfo

Vendor

OPTO 22

Name

SNAP PAC S1

Version

R10.3b

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (Dragos, Inc.): 🔍

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: 🔍

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: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/18/2023 🔍
08/25/2023 +7 days 🔍
08/25/2023 +0 days 🔍
09/20/2023 +26 days 🔍

Sourcesinfo

Advisory: icsa-23-236-02
Status: Confirmed

CVE: CVE-2023-40709 (🔍)
GCVE (CVE): GCVE-0-2023-40709
GCVE (VulDB): GCVE-100-237933

Entryinfo

Created: 08/25/2023 07:02
Updated: 09/20/2023 08:07
Changes: 08/25/2023 07:02 (49), 09/20/2023 08:07 (12)
Complete: 🔍
Cache ID: 216::103