// For flags

CVE-2018-16156

PaperStream IP (TWAIN) 1.42.0.5685 - Local Privilege Escalation

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

3
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PaperStream IP (TWAIN) 1.42.0.5685 (Service Update 7), the FJTWSVIC service running with SYSTEM privilege processes unauthenticated messages received over the FjtwMkic_Fjicube_32 named pipe. One of these message processing functions attempts to dynamically load the UninOldIS.dll library and executes an exported function named ChangeUninstallString. The default install does not contain this library and therefore if any DLL with that name exists in any directory listed in the PATH variable, it can be used to escalate to SYSTEM level privilege.

En PaperStream IP (TWAIN) 1.42.0.5685 (Service Update 7), el servicio FJTWSVIC que se ejecuta con el privilegio de SYSTEM procesa los mensajes no autenticados recibidos a través de la tubería con nombre FjtwMkic_Fjicube_32. Una de estas funciones de procesamiento de mensajes intenta cargar dinámicamente la biblioteca UninOldIS.dll y ejecuta una función exportada llamada ChangeUninstallString. La instalación predeterminada no contiene esta biblioteca y, por lo tanto, si existe alguna DLL con ese nombre en cualquier directorio listado en la variable PATH, se puede usar para escalar al privilegio del nivel del SYSTEM.

PaperStream IP (TWAIN) version 1.42.0.5685 suffers from a local privilege escalation vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-08-29 CVE Reserved
  • 2018-12-11 First Exploit
  • 2019-05-17 CVE Published
  • 2024-04-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-426: Untrusted Search Path
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fujitsu
Search vendor "Fujitsu"
 Paperstream Ip \(twain\)
Search vendor "Fujitsu" for product "Paperstream Ip \(twain\)"
 1.42.0.5685
Search vendor "Fujitsu" for product "Paperstream Ip \(twain\)" and version "1.42.0.5685"
-
Affected