PT-2015-7256 · 3S Smart Software Solutions · Codesys Gateway Server

Josep Pi Rodriguez · Published 2015-09-16 · Updated 2022-12-02 · CVE-2015-6460

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions CODESYS Gateway Server versions prior to 2.3.9.34

Description The issue is related to multiple heap-based buffer overflows that allow remote attackers to execute arbitrary code. This can be achieved via specific opcodes, including 0x3ef and 0x3f0. There is no information provided about the estimated number of potentially affected devices worldwide or details about real-world incidents where this issue was exploited.

Recommendations For versions prior to 2.3.9.34, update to version 2.3.9.34 or later to resolve the issue. As a temporary workaround, consider restricting access to the 0x3ef and 0x3f0 opcodes until a patch is applied.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2015-6460

ZDI-15-441

ZDI-15-442

Affected Products

Codesys Gateway Server

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2015-6460 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-15-441 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-15-442 · Security Note
• http://zerodayinitiative.com/advisories/ZDI-15-441 · Note
• http://zerodayinitiative.com/advisories/ZDI-15-442 · Note
• https://ics-cert.us-cert.gov/advisories/ICSA-15-258-02 · Note