CVE-2019-1258

Azure Active Directory Authentication Library Elevation of Privilege Vulnerability

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Existe una vulnerabilidad de elevación de privilegios en Azure Active Directory Authentication Library del lado de la transmisión, en la manera en que la biblioteca almacena en caché los tokens, también se conoce como "Azure Active Directory Authentication Library Elevation of Privilege Vulnerability".

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-11-26 CVE Reserved
2019-08-14 CVE Published
2023-06-03 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258	2024-05-29

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Active Directory Authentication Library Search vendor "Microsoft" for product "Active Directory Authentication Library"				>= 5.0.5 < 5.2.0 Search vendor "Microsoft" for product "Active Directory Authentication Library" and version " >= 5.0.5 < 5.2.0"		.net		Affected
Microsoft Search vendor "Microsoft"		Active Directory Authentication Library Search vendor "Microsoft" for product "Active Directory Authentication Library"				5.0.0 Search vendor "Microsoft" for product "Active Directory Authentication Library" and version "5.0.0"		preview, .net		Affected
Microsoft Search vendor "Microsoft"		Active Directory Authentication Library Search vendor "Microsoft" for product "Active Directory Authentication Library"				5.0.1 Search vendor "Microsoft" for product "Active Directory Authentication Library" and version "5.0.1"		preview, .net		Affected
Microsoft Search vendor "Microsoft"		Active Directory Authentication Library Search vendor "Microsoft" for product "Active Directory Authentication Library"				5.0.2 Search vendor "Microsoft" for product "Active Directory Authentication Library" and version "5.0.2"		preview, .net		Affected
Microsoft Search vendor "Microsoft"		Active Directory Authentication Library Search vendor "Microsoft" for product "Active Directory Authentication Library"				5.0.3 Search vendor "Microsoft" for product "Active Directory Authentication Library" and version "5.0.3"		preview, .net		Affected
Microsoft Search vendor "Microsoft"		Nuget Search vendor "Microsoft" for product "Nuget"				5.2.0 Search vendor "Microsoft" for product "Nuget" and version "5.2.0"		-		Affected