CVE-2019-6822

Schneider Electric Zelio Soft 2 ZM2 File Parsing Use-After-Free Remote Code Execution Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Use After Free: CWE-416 vulnerability exists in Zelio Soft 2, V5.2 and earlier, which could cause remote code execution when opening a specially crafted Zelio Soft 2 project file.

Una CWE-416: Se presenta una vulnerabilidad de Uso de Memoria Previamente Liberada en Zelio Soft 2, versión V5.2 y anteriores, que podría causar la ejecución de código remota al abrir un archivo de proyecto de Zelio Soft 2 especialmente diseñado.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric ZelioSoft 2. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of ZM2 files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: 9sg Security Team

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

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

2019-01-25 CVE Reserved
2019-07-10 CVE Published
2024-07-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/109100	Broken Link
https://www.us-cert.gov/ics/advisories/icsa-19-190-03	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-19-658	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-190-01	2022-10-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Schneider-electric Search vendor "Schneider-electric"		Zelio Soft 2 Search vendor "Schneider-electric" for product "Zelio Soft 2"				<= 5.2 Search vendor "Schneider-electric" for product "Zelio Soft 2" and version " <= 5.2"		-		Affected