PT-2018-1006 · 3S Smart · 3S-Smart Codesys Web Server

Zhu Wenzhe · Published 2018-02-01 · Updated 2020-09-18 · CVE-2018-5440

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions 3S-Smart CODESYS Web Server version 2.3 3S-Smart CODESYS Web Server versions prior to V1.1.9.19

Description A Stack-based Buffer Overflow issue was discovered in the 3S-Smart CODESYS Web Server. This issue can be exploited by a crafted request, potentially causing a buffer overflow, which could lead to the execution of arbitrary code on the web server or result in a denial-of-service condition due to a crash in the web server.

Recommendations For version 2.3, update to a version newer than V1.1.9.19 to resolve the issue. For versions prior to V1.1.9.19, update to version V1.1.9.19 or newer to resolve the issue. As a temporary workaround, consider restricting access to the web server to minimize the risk of exploitation.

Fix

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2018-00224

CVE-2018-5440

Affected Products

3S-Smart Codesys Web Server

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2018-5440 · Security Note
• https://bdu.fstec.ru/vul/2018-00224 · Security Note
• https://osv.dev/vulnerability/CVE-2018-5440 · Vendor Advisory
• https://securityfocus.com/bid/102909 · Note
• https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02 · Note
• http://securityfocus.com/bid/102909 · Note
• https://ics-cert.us-cert.gov/advisories/ICSA-18-011-02 · Note