2345 Security Guard 3.6 2345NetFirewall.sys) Blue Screen 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 (≈)
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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.
6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in 2345 Security Guard 3.6. It has been rated as critical. Affected is an unknown function in the library 2345NetFirewall.sys). This manipulation causes input validation (Blue Screen). This vulnerability is handled as CVE-2018-8765. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in 2345 Security Guard 3.6 (Firewall Software). Affected by this vulnerability is an unknown function in the library 2345NetFirewall.sys). The manipulation with an unknown input leads to a input validation vulnerability (Blue Screen). The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

In 2345 Security Guard 3.6, the driver file (2345NetFirewall.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x00222018.

The bug was discovered 03/17/2018. The weakness was released 03/18/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2018-8765 since 03/18/2018. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit.

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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Blue Screen
Class: Input validation / Blue Screen
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/17/2018 🔍
03/18/2018 +1 days 🔍
03/18/2018 +0 days 🔍
03/18/2018 +0 days 🔍
03/19/2018 +1 days 🔍
01/14/2020 +666 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2018-8765 (🔍)
GCVE (CVE): GCVE-0-2018-8765
GCVE (VulDB): GCVE-100-114751

Entryinfo

Created: 03/19/2018 07:53
Updated: 01/14/2020 16:38
Changes: 03/19/2018 07:53 (59), 01/14/2020 16:38 (1)
Complete: 🔍
Cache ID: 216::103

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