Piwigo up to 14.x Configuration Parameter RAND random values

Summaryinfo

A vulnerability has been found in Piwigo up to 14.x and classified as problematic. Affected by this issue is the function RAND of the component Configuration Parameter Handler. This manipulation causes random values. This vulnerability appears as CVE-2024-48928. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Piwigo up to 14.x. It has been declared as problematic. Affected by this vulnerability is the function RAND of the component Configuration Parameter Handler. The manipulation with an unknown input leads to a random values vulnerability. The CWE definition for the vulnerability is CWE-330. The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. As an impact it is known to affect confidentiality. The summary by CVE is:

Piwigo is an open source photo gallery application for the web. In versions on the 14.x branch, when installing, the secret_key configuration parameter is set to MD5(RAND()) in MySQL. However, RAND() only has 30 bits of randomness, making it feasible to brute-force the secret key. The CSRF token is constructed partially from the secret key, and this can be used to check if the brute force succeeded. Trying all possible values takes approximately one hour. The impact of this is limited. The auto login key uses the user's password on top of the secret key. The pwg token uses the user's session identifier on top of the secret key. It seems that values for get_ephemeral_key can be generated when one knows the secret key. Version 15.0.0 contains a fix for the issue.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-48928 since 10/10/2024. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 15.0.0 eliminates this vulnerability.

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Productinfo

Type

• Photo Gallery Software

Name

• Piwigo

Version

• 14.x

License

• open-source

Website

• Product: https://github.com/Piwigo/Piwigo/

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