alfio-event alf.io up to 2.0-M4 race condition

Summaryinfo

A vulnerability identified as critical has been detected in alfio-event alf.io up to 2.0-M4. This vulnerability affects unknown code. The manipulation leads to race condition. This vulnerability is traded as CVE-2024-45300. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in alfio-event alf.io up to 2.0-M4 and classified as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is availability. The summary by CVE is:

alf.io is an open source ticket reservation system for conferences, trade shows, workshops, and meetups. Prior to version 2.0-M5, a race condition allows the user to bypass the limit on the number of promo codes and use the discount coupon multiple times. In "alf.io", an event organizer can apply price discounts by using promo codes to your events. The organizer can limit the number of promo codes that will be used for this, but the time-gap between checking the number of codes and restricting the use of the codes allows a threat actor to bypass the promo code limit. Version 2.0-M5 fixes this issue.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-45300 since 08/26/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.0-M5 eliminates this vulnerability. Applying the patch 53b3309e26e8acec6860d1e045df3046153a3245 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

• alfio-event

Name

• alf.io

Version

• 2.0-M4

License

• open-source

Website

• Product: https://github.com/alfio-event/alf.io/

CPE 2.3info

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CPE 2.2info

• 🔍
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