CVE-2015-6460

CODESYS Gateway Server Opcode 0x3f0 Heap Buffer Overflow Remote Code Execution Vulnerability

Severity Score

7.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Multiple heap-based buffer overflows in 3S-Smart CODESYS Gateway Server before 2.3.9.34 allow remote attackers to execute arbitrary code via opcode (1) 0x3ef or (2) 0x3f0.

Múltiples desbordamientos de búfer basados en la pila en 3S-Smart CODESYS Gateway Server antes de la versión 2.3.9.34 permiten a los atacantes remotos ejecutar código arbitrario a través del opcode (1) 0x3ef o (2) 0x3f0

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of CODESYS Gateway Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of the 0x03f0 opcode. An attacker can send a large buffer of data to the server which causes a heap buffer overflow. An attacker can leverage this vulnerability to execute code under the context of the process.

*Credits: Josep Pi Rodriguez

CVSS Scores

NISTv2 7.5

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-08-17 CVE Reserved
2015-09-16 CVE Published
2024-09-16 CVE Updated
2024-10-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source
http://zerodayinitiative.com/advisories/ZDI-15-441	Third Party Advisory
http://zerodayinitiative.com/advisories/ZDI-15-442	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-15-258-02	Third Party Advisory

URL	Date	SRC

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
3s-smart Search vendor "3s-smart"		Codesys Gateway Server Search vendor "3s-smart" for product "Codesys Gateway Server"				< 2.3.9.34 Search vendor "3s-smart" for product "Codesys Gateway Server" and version " < 2.3.9.34"		-		Affected