Synology Hyper Backup up to 4.1.2-4035 path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in Synology Hyper Backup up to 4.1.2-4035. This affects an unknown part. The manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2024-47273. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Synology Hyper Backup up to 4.1.2-4035. It has been rated as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in Backup Task functionality in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users to write specific files via unspecified vectors.

The weakness was disclosed by Zhao Runzi. The advisory is shared at synology.com. The identification of this vulnerability is CVE-2024-47273 since 09/24/2024. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 4.1.2-4036 eliminates this vulnerability.

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Productinfo

Type

• Backup Software

Vendor

• Synology

Name

• Hyper Backup

Version

• 4.1.2-4035

License

• commercial

Website

• Vendor: https://www.synology.com/

CPE 2.3info

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CPE 2.2info

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