Advantech WebAccess webvrpcs.exe IOCTL 70022 Stack Overflow

high Nessus Plugin ID 119845
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 4.9

Synopsis

The remote host is running a SCADA application that is affected by a remote code execution vulnerability.

Description

The Advantech WebAccess/SCADA Network Service (webvrpcs.exe) running on the remote host is affected by a stack-based buffer overflow condition due to improper validation of user-supplied data when processing a DCERPC request. An unauthenticated, remote attacker can exploit this, via a series of crafted requests, to execute arbitrary code.

Solution

Upgrade to Advantech WebAccess/SCADA version 8.3.4 or later.

See Also

https://www.tenable.com/security/research/tra-2018-45

https://ics-cert.us-cert.gov/advisories/ICSA-18-352-02

Plugin Details

Severity: High

ID: 119845

File Name: scada_advantech_webaccess_cve-2018-18999.nbin

Version: 1.52

Type: remote

Family: SCADA

Published: 12/21/2018

Updated: 5/10/2021

Dependencies: scada_advantech_webaccess_webvrpcs_detect.nbin

Risk Information

Risk Factor: High

VPR Score: 4.9

CVSS Score Source: CVE-2018-18999

CVSS v2.0

Base Score: 7.5

Temporal Score: 6.2

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 7.3

Temporal Score: 6.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:advantech:webaccess

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/14/2018

Vulnerability Publication Date: 12/14/2018

Exploitable With

Core Impact

Reference Information

CVE: CVE-2018-18999

BID: 106245

ICSA: 18-352-02

TRA: TRA-2018-45