uri-template-lite on NPM URI.expand redos

Summaryinfo

A vulnerability, which was classified as critical, has been found in uri-template-lite on NPM. Affected by this issue is the function URI.expand. The manipulation leads to redos. This vulnerability is documented as CVE-2021-43309. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in uri-template-lite on NPM (NPM Package) (affected version unknown) and classified as problematic. This issue affects the function URI.expand. The manipulation with an unknown input leads to a redos vulnerability. Using CWE to declare the problem leads to CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. Impacted is availability. The summary by CVE is:

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the uri-template-lite npm package, when an attacker is able to supply arbitrary input to the "URI.expand" method

The weakness was released 08/25/2022. It is possible to read the advisory at research.jfrog.com. The identification of this vulnerability is CVE-2021-43309 since 11/03/2021. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1449.003 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• NPM Package

Name

• uri-template-lite

CPE 2.3info

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CPE 2.2info

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