PT-2023-36072 · Adyen · Adyen
Published
2023-01-24
·
Updated
2023-01-24
None
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Name of the Vulnerable Software and Affected Versions
Adyen (affected versions not specified)
Description
The issue concerns the
is valid hmac and is valid hmac notification methods in Adyen's utility for validating notification HMAC signatures. These methods are susceptible to a timing attack. To mitigate this, comparing the hash of the HMACs is recommended instead of the current approach.Recommendations
For all affected versions, consider modifying the
is valid hmac and is valid hmac notification methods to compare the hash of the HMACs instead of the current implementation to prevent timing attacks. Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Adyen