// For flags

CVE-2020-10637

Eaton HMiSoft VU3 File Parsing wTextLen Out-Of-Bounds Read Information Disclosure Vulnerability

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Eaton HMiSoft VU3 (HMIVU3 runtime not impacted), Version 3.00.23 and prior, however, the HMIVU runtimes are not impacted by these issues. A specially crafted input file could trigger an out-of-bounds read when loaded by the affected product.

Eaton HMiSoft VU3 (el tiempo de ejecución de HMIVU3 no está impactado), versiones 3.00.23 y anteriores, sin embargo, los tiempos de ejecución de HMIVU no están impactados por estos problemas. Un archivo de entrada especialmente diseñado podría desencadenar una lectura fuera de límites cuando es cargado por el producto afectado.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Eaton HMiSoft. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of wTextLen information within VU3 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: Natnael Samson (@NattiSamson)
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-03-16 CVE Reserved
  • 2020-04-15 CVE Published
  • 2024-01-01 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
References (1)
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
Eaton
Search vendor "Eaton"
Hmisoft Vu3 Firmware
Search vendor "Eaton" for product "Hmisoft Vu3 Firmware"
<= 3.00.23
Search vendor "Eaton" for product "Hmisoft Vu3 Firmware" and version " <= 3.00.23"
-
Affected
in Eaton
Search vendor "Eaton"
Hmisoft Vu3
Search vendor "Eaton" for product "Hmisoft Vu3"
--
Safe