Wallos up to 2.38.2 Restore Backup unrestricted upload

Summaryinfo

A vulnerability was found in Wallos up to 2.38.2. It has been classified as critical. Affected by this issue is some unknown functionality of the component Restore Backup Handler. This manipulation causes unrestricted upload. This vulnerability is tracked as CVE-2024-55371. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Wallos up to 2.38.2. Affected by this vulnerability is an unknown code block of the component Restore Backup Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Wallos <= 2.38.2 has a file upload vulnerability in the restore backup function, which allows authenticated users to restore backups by uploading a ZIP file. The contents of the ZIP file are extracted on the server. This functionality enables an authenticated attacker (being an administrator is not required) to upload malicious files to the server. Once a web shell is installed, the attacker gains the ability to execute arbitrary commands.

The advisory is shared at datafarm.co.th. This vulnerability is known as CVE-2024-55371 since 12/06/2024. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/24/2025). MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-11492). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Wallos

Version

• 2.38.0
• 2.38.1
• 2.38.2

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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