Authentication Bypass by Spoofing Affecting github.com/openshift/telemeter/pkg/authorize/jwt package, versions *


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMOPENSHIFTTELEMETERPKGAUTHORIZEJWT-7216071
  • published6 Jun 2024
  • disclosed5 Jun 2024
  • creditUnknown

Introduced: 5 Jun 2024

CVE-2024-5037  (opens in a new tab)
CWE-290  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Authentication Bypass by Spoofing due to a flaw in the JWT authentication mechanism. An attacker can bypass the issue ("iss") check and gain unauthorized access by using a forged token. If two servers use the same pair of keys, the attacker can use the token from the first server to deceive the second server, and cause the privilege escape.

PoC

{
"fakeiss":".eyJpc3MiOiJhY2NvdW50cy5nb29nbGUuY29tIn0.",
"protected":"",
"header":"",
"payload":"",
"signature":""
}

CVSS Scores

version 3.1