CVE-2018-10594

Delta Industrial Automation COMMGR AHSIM_5x0 Simulator Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Delta Industrial Automation COMMGR from Delta Electronics versions 1.08 and prior with accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1) utilize a fixed-length stack buffer where an unverified length value can be read from the network packets via a specific network port, causing the buffer to be overwritten. This may allow remote code execution, cause the application to crash, or result in a denial-of-service condition in the application server.

Delta Industrial Automation COMMGR de Delta Electronics en versiones 1.08 y anteriores con sus simuladores PLC (DVPSimulator EH2, EH3, ES2, SE, SS2 y AHSIM_5x0, AHSIM_5x1) utiliza un búfer de pila de longitud fija en el que se puede leer un valor de longitud no verificado desde los paquetes de red mediante un puerto de red específico, provocando la sobrescritura del búfer. Esto puede permitir la ejecución remota de código, provocando el cierre inesperado de la aplicación o resultando en una condición de denegación de servicio (DoS) en el servidor de la aplicación.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Delta Industrial Automation COMMGR. Authentication is not required to exploit this vulnerability.
The specific flaw exists within processing of TCP packets sent to the AHSIM 5x0 Simulator. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code under the context of the COMMGR process.

Delta Electronics Delta Industrial Automation COMMGR versions 1.08 and below suffer from a buffer overflow vulnerability.

*Credits: Anonymous

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-01 CVE Reserved
2018-06-26 CVE Published
2024-07-06 EPSS Updated
2024-09-16 CVE Updated
2024-09-16 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121: Stack-based Buffer Overflow

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/104529	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-172-01	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/44965	2024-09-16
https://www.exploit-db.com/exploits/45574	2024-09-16

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
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Ahsim 5x0 Search vendor "Deltaww" for product "Dvpsimulator Ahsim 5x0"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Ahsim 5x1 Search vendor "Deltaww" for product "Dvpsimulator Ahsim 5x1"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Eh2 Search vendor "Deltaww" for product "Dvpsimulator Eh2"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Es2 Search vendor "Deltaww" for product "Dvpsimulator Es2"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator H3 Search vendor "Deltaww" for product "Dvpsimulator H3"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Se Search vendor "Deltaww" for product "Dvpsimulator Se"	-	-	Safe
Deltaww Search vendor "Deltaww"	Commgr Search vendor "Deltaww" for product "Commgr"	<= 1.08 Search vendor "Deltaww" for product "Commgr" and version " <= 1.08"	-	Affected	in	Deltaww Search vendor "Deltaww"	Dvpsimulator Ss2 Search vendor "Deltaww" for product "Dvpsimulator Ss2"	-	-	Safe