ChewKeanHo Actualizer up to 1.1.x Password weak hash

Summaryinfo

A vulnerability categorized as problematic has been discovered in ChewKeanHo Actualizer up to 1.1.x. The impacted element is an unknown function of the component Password Handler. Executing a manipulation can lead to weak hash. This vulnerability is tracked as CVE-2025-47276. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ChewKeanHo Actualizer up to 1.1.x and classified as problematic. This vulnerability affects an unknown functionality of the component Password Handler. The manipulation with an unknown input leads to a weak hash vulnerability. The CWE definition for the vulnerability is CWE-328. The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). As an impact it is known to affect integrity. CVE summarizes:

Actualizer is a single shell script solution to allow developers and embedded engineers to create Debian operating systems (OS). Prior to version 1.2.0, Actualizer uses OpenSSL's "-passwd" function, which uses SHA512 instead of a more suitable password hasher like Yescript/Argon2i. All Actualizer users building a full Debian Operating System are affected. Users should upgrade to version 1.2.0 of Actualizer. Existing OS deployment requires manual password changes against the alpha and root accounts. The change will deploy's Debian's yescript overriding the older SHA512 hash created by OpenSSL. As a workaround, users need to reset both `root` and "Alpha" users' passwords.

The advisory is available at github.com. This vulnerability was named CVE-2025-47276 since 05/05/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.

Upgrading to version 1.2.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 32c9cc232c856f078f8269fba80ce7562bbff86b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• ChewKeanHo

Name

• Actualizer

Version

• 1.0
• 1.1

License

• open-source

Website

• Product: https://github.com/ChewKeanHo/Actualizer/

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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