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[email protected]CVE-2019-1258

HistoryAug 14, 2019 - 9:15 p.m.

CVE-2019-1258

2019-08-1421:15:19

[email protected]

web.nvd.nist.gov

azure

active directory

authentication

library

vulnerability

elevation of privilege

cve-2019-1258

nvd

6.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.0%

JSON

An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens. This vulnerability allows an authenticated attacker to perform actions in context of another user.
The authenticated attacker can exploit this vulneraiblity by accessing a service configured for On-Behalf-Of flow that assigns incorrect tokens.
This security update addresses the vulnerability by removing fallback cache look-up for On-Behalf-Of scenarios.

Affected configurations

Vulners

NVD

Node

microsoftmicrosoft_tech_companion

microsoftnugetRange5.0.0–5

VendorProductVersionCPE
microsoftnuget*cpe:2.3:a:microsoft:nuget:*:*:*:*:*:*:*:*
microsoftmicrosoft_tech_companion*cpe:2.3:a:microsoft:microsoft_tech_companion:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
microsoft	nuget	*	cpe:2.3:a:microsoft:nuget::::::::
microsoft	microsoft_tech_companion	*	cpe:2.3:a:microsoft:microsoft_tech_companion::::::::

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "ADAL.NET",
    "cpes": [
      "cpe:2.3:a:microsoft:active_directory_authentication_library:*:*:*:*:*:.net:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "5.0.0",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Nuget 5.2.0",
    "cpes": [
      "cpe:2.3:a:microsoft:nuget:5.2.0:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "Unknown"
    ],
    "versions": [
      {
        "version": "5.0.0",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]