// For flags

CVE-2018-7837

Schneider Electric IIoT Monitor RuleMgmt addRule XML External Entity Processing Information Disclosure 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

An Improper Restriction of XML External Entity Reference ('XXE') vulnerability exists on numerous methods of the IIoT Monitor 3.1.38 software that could allow the software to resolve documents outside of the intended sphere of control, causing the software to embed incorrect documents into its output and expose restricted information.

Existe una vulnerabilidad de restricción incorrecta de XEE (XML External Entity) en numerosos métodos del software de IIoT Monitor 3.1.38 que podría permitir que el software resuelva documentos fuera de la esfera de control planeada, provocando que el software embeba documentos incorrectos en su entrada y exponga información restringida.

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Schneider Electric IIoT Monitor. Authentication is not required to exploit this vulnerability.
The specific flaw exists in the addRule method of the RuleMgmt servlet. Due to the improper restriction of XML External Entity (XXE) references, a specially crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this in conjunction with other vulnerabilities to bypass authentication on the system.

*Credits: rgod of 9sg Security Team - rgod@9sgsec.com
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-03-08 CVE Reserved
  • 2018-12-24 CVE Published
  • 2023-08-09 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-611: Improper Restriction of XML External Entity Reference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Schneider-electric
Search vendor "Schneider-electric"
 Iiot Monior
Search vendor "Schneider-electric" for product "Iiot Monior"
 3.1.38
Search vendor "Schneider-electric" for product "Iiot Monior" and version "3.1.38"
-
Affected