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ConnectWise ScreenConnect is a popular remote access software used by many organizations globally.
ConnectWise ScreenConnect 23.9.7 and prior versions are impacted by the following 2 vulnerabilities with CVSS base scores of 8.4 HIGH and 10.0 CRITICALrespectively.
Is ArcSight portfolio impacted?
No. This software is not being used by ArcSight portfolio. As part of our ongoing efforts to provide comprehensive cyber resilience for ArcSight customers to detect these and similar global cyber threats, we are publishing this detection analytics package.
How can ConnectWise ScreenConnect customers mitigate this risk?
For more details, please visit the relevant page on ConnectWise’s website: https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
Why is this Important and Urgent?
The reasons outlined below contribute to the criticality and urgency of this global topic:
Detailed Technical Description of the Vulnerabilities:
Recently, two critical security issues have emerged, shaking the foundations of ScreenConnect servers. Assigned the identifiers CVE-2024-1708 and CVE-2024-1709, these vulnerabilities have been assessed by the vendor as an authentication bypass of maximum severity and a path traversal flaw with high severity, affecting ScreenConnect servers version 23.9.7 and earlier.
CVE-2024-1708: ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an attacker the ability to execute remote code or directly impact confidential data or critical systems.
CVE-2024-1709: ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.
Detection and Monitoring of this threat:
ArcSight analytics package will use a combination of the following to detect the exploitation attempts.
1) We will use the following IP addresses, which were used by threat actors to exploit these vulnerabilities:
2) Furthermore, we will use CVE numbers to understand the existence of these vulnerabilities in the customers’ environments.
We will keep on updating this page with more information and further detection techniques.
To install this package on ArcSight ESM:
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The zip file contains three files: package arb file, the signature of arb file and readme.
OpenText provides a digital public key to enable you to verify that the signed software is indeed from Open Text and has not been manipulated in any way by a third party. Visit the following site for information and instructions:
https://support.microfocus.com/kb/doc.php?id=7025140
Perform the following steps in the ArcSight Console:
1. Go to the ArcSight Console.
2. Click on Packages
3. Click Import
4. Select arb from the zip file
5. Follow the prompt to import and install this package
To uninstall this package on ArcSight ESM:
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Perform the following steps in the ArcSight Console:
1. Go to the ArcSight Console.
2. Select the Package
3. Right-Click on the package and select uninstall.
4. Follow the prompts and uninstall the package.
Rules Special Configurations and Requirements
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Please make sure that rules are enabled
Rules Included:
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Critical ConnectWise ScreenConnect Vulnerability Detected
Possible Exploit of ConnectWise ScreenConnect Vulnerability
System Requirements
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ArcSight ESM 7.2 or above
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This release contains a package containining resources to monitor ConnectWise ScreenConnect Vulnerability (CVE-2024-1709 - Authentication Bypass, CVE-2024-1708 - Path Traversal).
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