CVE-2019-1257

Microsoft SharePoint Business Data Connectivity Service Deserialization of Untrusted Data Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1295, CVE-2019-1296.

Se presenta una vulnerabilidad de ejecución de código remota en Microsoft SharePoint cuando el software no puede comprobar el marcado de fuente de un paquete de aplicación, también se conoce como "Microsoft SharePoint Remote Code Execution Vulnerability". Este ID de CVE es diferente de CVE-2019-1295, CVE-2019-1296.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.
The specific flaw exists within the Business Data Connectivity Service. A crafted request can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the SharePoint application pool identity.

*Credits: Markus Wulftange (@mwulftange)

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
2019-09-10 CVE Published
2024-08-04 CVE Updated
2024-11-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1257	2019-09-12

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"		Sharepoint Enterprise Server Search vendor "Microsoft" for product "Sharepoint Enterprise Server"				2016 Search vendor "Microsoft" for product "Sharepoint Enterprise Server" and version "2016"		-		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Foundation Search vendor "Microsoft" for product "Sharepoint Foundation"				2010 Search vendor "Microsoft" for product "Sharepoint Foundation" and version "2010"		sp2		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Foundation Search vendor "Microsoft" for product "Sharepoint Foundation"				2013 Search vendor "Microsoft" for product "Sharepoint Foundation" and version "2013"		sp1		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server"				2019 Search vendor "Microsoft" for product "Sharepoint Server" and version "2019"		-		Affected