// For flags

CVE-2016-0851

Advantech WebAccess webvrpcs Service BwOpcSvc.dll sprintf Uncontrolled Format String Remote Code Execution Vulnerability

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Advantech WebAccess before 8.1 allows remote attackers to cause a denial of service (out-of-bounds memory access) via unspecified vectors.

Advantech WebAccess en versiones anteriores a 8.1 permite a atacantes remotos causar una denegación de servicio (acceso a memoria fuera de rango) a través de vectores no especificados.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable instances of Advantech WebAccess. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the 0x13881 IOCTL in the BwOpcTool subsystem. An uncontrolled format string vulnerability exists in a call to sprintf. An attacker can use this vulnerability to execute arbitrary code in the context of an administrator of the system.

*Credits: Anonymous
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-12-17 CVE Reserved
  • 2016-01-15 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-21 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 (1)
URL Tag Source
https://ics-cert.us-cert.gov/advisories/ICSA-16-014-01 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
Advantech
Search vendor "Advantech"
 Webaccess
Search vendor "Advantech" for product "Webaccess"
 <= 8.0
Search vendor "Advantech" for product "Webaccess" and version " <= 8.0"
-
Affected