Inversoft prime-jwt JWT Signature Validation input validation

Summaryinfo

A vulnerability categorized as critical has been discovered in Inversoft prime-jwt. This affects an unknown part of the component JWT Signature Validation. The manipulation results in input validation. This vulnerability is identified as CVE-2018-1000531. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Inversoft prime-jwt (affected version unknown). Affected is an unknown functionality of the component JWT Signature Validation. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

inversoft prime-jwt version prior to commit abb0d479389a2509f939452a6767dc424bb5e6ba contains a CWE-20 vulnerability in JWTDecoder.decode that can result in JWT signature validation can be bypassed. This attack appear to be exploitable via An attacker crafts a JWT token with a valid header using 'none' as algorithm and a body to requests it be validated.. This vulnerability appears to have been fixed in after commit abb0d479389a2509f939452a6767dc424bb5e6ba.

The bug was discovered 05/02/2018. The weakness was released 06/26/2018 (Website). The advisory is available at github.com. This vulnerability is traded as CVE-2018-1000531 since 06/22/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 55 days. During that time the estimated underground price was around $0-$5k.

Applying the patch abb0d479389a2509f939452a6767dc424bb5e6ba is able to eliminate this problem.

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

Productinfo

Vendor

• Inversoft

Name

• prime-jwt

Website

• Product: https://github.com/inversoft/prime-jwt/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

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

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