CVE-2020-13580

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An exploitable heap-based buffer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser to explicitly trust a length from a particular record type and use it to write a 16-bit null relative to a buffer allocated on the stack. Due to a lack of bounds-checking on this value, this can allow an attacker to write to memory outside of the buffer and controllably corrupt memory. This can allow an attacker to earn code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability.

Se presenta una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria explotable en la funcionalidad de análisis de documentos de PlanMaker de la aplicación PlanMaker de SoftMaker Office 2021. Un documento especialmente diseñado puede causar que el analizador de documentos confíe explícitamente en una longitud de un tipo de registro en particular y lo use para escribir un null de 16 bits en relación con un búfer asignado en la pila. Debido a una falta de comprobación de límites en este valor, esto puede permitir a un atacante escribir en la memoria fuera del búfer y corromper la memoria de manera controlable. Esto puede permitir a un atacante ganarse la ejecución de código en el contexto de la aplicación. Un atacante puede atraer a la víctima para que abra un documento para activar esta vulnerabilidad

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-05-26 CVE Reserved
2021-02-04 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1191	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Softmaker Search vendor "Softmaker"		Planmaker 2021 Search vendor "Softmaker" for product "Planmaker 2021"				1014 Search vendor "Softmaker" for product "Planmaker 2021" and version "1014"		-		Affected