CVE-2023-52947: active backup for Missing Auth — Fix

Description

Missing authentication for critical function vulnerability in logout functionality in Synology Active Backup for Business Agent before 2.6.3-3101 allows local users to logout the client via unspecified vectors. The backup functionality will continue to operate and will not be affected by the logout.

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CVSS v3.1 Score

4.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor	Product	Versions
synology	active_backup_for_business_agent	< 2.6.0-3101

References

Advisories & Patches

https://www.synology.com/en-global/security/advisory/Synology_SA_24_11

Frequently Asked Questions

What is CVE-2023-52947? +

Missing authentication for critical function vulnerability in logout functionality in Synology Active Backup for Business Agent before 2.6.3-3101 allows local users to logout the client via unspecified vectors. The backup functionality will continue to operate and will not be affected by the logout. It has a CVSS v3.1 base score of 4.0 (MEDIUM).

How severe is CVE-2023-52947? +

CVE-2023-52947 has a CVSS v3.1 score of 4.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-52947? +

CVE-2023-52947 affects products from synology, specifically: active_backup_for_business_agent. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52947? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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