ConnectWise ScreenConnect up to 23.8.4 Proxy Setting access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in ConnectWise ScreenConnect up to 23.8.4 and classified as critical. This affects an unknown part of the component Proxy Setting Handler. This manipulation causes access control. This vulnerability is handled as CVE-2023-47256. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in ConnectWise ScreenConnect up to 23.8.4 (Network Management Software) and classified as critical. Affected by this vulnerability is an unknown part of the component Proxy Setting Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

ConnectWise ScreenConnect through 23.8.4 allows local users to connect to arbitrary relay servers via implicit trust of proxy settings

The weakness was released 02/02/2024. The advisory is shared at connectwise.com. This vulnerability is known as CVE-2023-47256 since 11/05/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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

11/05/2023 🔍
02/02/2024 +89 days 🔍
02/02/2024 +0 days 🔍
06/18/2025 +502 days 🔍

Sourcesinfo

Advisory: connectwise.com
Status: Confirmed

CVE: CVE-2023-47256 (🔍)
GCVE (CVE): GCVE-0-2023-47256
GCVE (VulDB): GCVE-100-252661

Entryinfo

Created: 02/02/2024 07:38
Updated: 06/18/2025 06:26
Changes: 02/02/2024 07:38 (39), 02/24/2024 15:08 (11), 06/18/2025 06:26 (16)
Complete: 🔍
Cache ID: 216::103

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