REDHAT-BUG-2339176: Medium severity undici vulnerability
Undici is an HTTP/1.1 client. Starting in version 4.5.0 and prior to versions 5.28.5, 6.21.1, and 7.2.3, undici uses Math.random() to choose the boundary for a multipart/form-data request. It is known that the output of Math.random() can be predicted if several of its generated values are known. If there is a mechanism in an app that sends multipart requests to an attacker-controlled website, they can use this to leak the necessary values. Therefore, an attacker can tamper with the requests going to the backend APIs if certain conditions are met. This is fixed in versions 5.28.5, 6.21.1, and 7.2.3. As a workaround, do not issue multipart requests to attacker controlled servers.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2339176?
The severity of REDHAT-BUG-2339176 is considered to be significant due to the predictability of boundary values in multipart/form-data requests.
How do I fix REDHAT-BUG-2339176?
To fix REDHAT-BUG-2339176, upgrade to versions 5.28.5, 6.21.1, or 7.2.3 of Node.js Undici.
Which versions of Undici are affected by REDHAT-BUG-2339176?
Versions of Node.js Undici from 4.5.0 up to 5.28.5, 6.21.1, and 7.2.3 are affected by REDHAT-BUG-2339176.
What type of vulnerability is REDHAT-BUG-2339176?
REDHAT-BUG-2339176 is a vulnerability related to the predictability of generated boundary values in HTTP multipart requests.
Who is affected by REDHAT-BUG-2339176?
Any application utilizing Node.js Undici versions 4.5.0 to 5.28.5, 6.21.1, and 7.2.3 is potentially affected by REDHAT-BUG-2339176.