php-jwt 1.0.0 strcmp timing discrepancy

Summaryinfo

A vulnerability marked as critical has been reported in php-jwt 1.0.0. The affected element is the function strcmp. Performing a manipulation results in timing discrepancy. This vulnerability is known as CVE-2024-25191. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in php-jwt 1.0.0 (Programming Language Software). This affects the function strcmp. The manipulation with an unknown input leads to a timing discrepancy vulnerability. CWE is classifying the issue as CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. This is going to have an impact on confidentiality. The summary by CVE is:

php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.

The weakness was published 02/08/2024. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2024-25191 since 02/07/2024. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

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

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Productinfo

Type

• Programming Language Software

Name

• php-jwt

Version

• 1.0.0

CPE 2.3info

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CPE 2.2info

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