CVE-2024-21643

Published Jan 10, 2024

Last updated 10 months ago

Overview

Description: IdentityModel Extensions for .NET provide assemblies for web developers that wish to use federated identity providers for establishing the caller's identity. Anyone leveraging the `SignedHttpRequest`protocol or the `SignedHttpRequestValidator`is vulnerable. Microsoft.IdentityModel trusts the `jku`claim by default for the `SignedHttpRequest`protocol. This raises the possibility to make any remote or local `HTTP GET` request. The vulnerability has been fixed in Microsoft.IdentityModel.Protocols.SignedHttpRequest. Users should update all their Microsoft.IdentityModel versions to 7.1.2 (for 7x) or higher, 6.34.0 (for 6x) or higher.
Source: security-advisories@github.com
NVD status: Analyzed

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

security-advisories@github.com: CWE-94

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:microsoft:identitymodel_extensions:*:*:*:*:*:.net:*:*",
            "vulnerable": true,
            "matchCriteriaId": "3AB172A8-AC83-4C09-A2B4-D4CB9FE422ED",
            "versionEndExcluding": "6.34.0"
          },
          {
            "criteria": "cpe:2.3:a:microsoft:identitymodel_extensions:*:*:*:*:*:.net:*:*",
            "vulnerable": true,
            "matchCriteriaId": "6639E6E6-65F1-4757-A7DB-B61EC5978C58",
            "versionEndExcluding": "7.1.2",
            "versionStartIncluding": "7.0.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Social media

Risk scores

CVSS 3.1

Weaknesses

Configurations

References