PT-2019-3769 · Advantech · Advantech Webaccess

Mat Powell + 2 · Published 2019-01-30 · Updated 2020-10-06 · CVE-2019-6552

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Advantech WebAccess versions 8.3.5 and prior

Description The issue is related to a lack of proper validation of user-supplied data, which may allow a remote attacker to execute arbitrary code. This is due to multiple command injection vulnerabilities.

Recommendations For Advantech WebAccess versions 8.3.5 and prior, consider restricting access to the bwrunmie command until a patch is available. As a temporary workaround, avoid using user-supplied data in commands to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2019-04029

CVE-2019-6552

ZDI-19-324

ZDI-19-326

Affected Products

Advantech Webaccess

References · 8

• https://zerodayinitiative.com/advisories/ZDI-19-326 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-19-324 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-6552 · Security Note
• https://osv.dev/vulnerability/CVE-2019-6552 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-04029 · Security Note
• https://ics-cert.us-cert.gov/advisories/ICSA-19-092-01 · Note
• https://us-cert.gov/ics/advisories/ICSA-19-092-01 · Note
• https://threatpost.ru/advantech-patches-critical-vulns-in-webaccess-scada/32103 · Note