CVE-2017-14016

Advantech WebAccess webvrpcs ViewDll1 Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

6.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

Se ha descubierto un problema de desbordamiento de búfer basado en pila en Advantech WebAccess en versiones anteriores a la V8.2_20170817. La aplicación no posee una validación adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un búfer basado en pila. Esto podría permitir que un atacante ejecute código arbitrario bajo el contexto del proceso.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability.
The specific flaw exists within implementation of the 0x138bd IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this functionality to execute code under the context of Administrator.

*Credits: Steven Seeley (mr_me) of Offensive Security

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

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

2017-08-30 CVE Reserved
2017-11-06 CVE Published
2023-11-22 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 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 (3)

URL	Tag	Source
http://www.securityfocus.com/bid/101685	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-306-02	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/43340	2024-08-05

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
Advantech Search vendor "Advantech"		Webaccess Search vendor "Advantech" for product "Webaccess"				< 8.2_20170817 Search vendor "Advantech" for product "Webaccess" and version " < 8.2_20170817"		-		Affected