// For flags

CVE-2021-27381

Siemens Solid Edge Viewer PAR File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability has been identified in Solid Edge SE2020 (All Versions < SE2020MP13), Solid Edge SE2021 (All Versions < SE2021MP3). Affected applications lack proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds read past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12534)

Se ha identificado una vulnerabilidad en Solid Edge SE2020 (Todas las versiones anteriores a SE2020MP13), Solid Edge SE2021 (Todas las versiones anteriores a SE2021MP3).&#xa0;Las aplicaciones afectadas carecen de una comprobación apropiada de los datos proporcionados por el usuario cuando se analizan archivos PAR.&#xa0;Esto podría resultar en una lectura fuera de límites más allá del final de una estructura asignada.&#xa0;Un atacante podría aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual.&#xa0;(ZDI?CAN?12534)

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Siemens Solid Edge Viewer. 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 PAR 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 arbitrary code in the context of the current process.

*Credits: Francis Provencher {PRL}
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-18 CVE Reserved
  • 2021-03-11 CVE Published
  • 2024-04-01 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
Search vendor "Siemens"
Solid Edge
Search vendor "Siemens" for product "Solid Edge"
< se2021
Search vendor "Siemens" for product "Solid Edge" and version " < se2021"
-
Affected
Siemens
Search vendor "Siemens"
Solid Edge
Search vendor "Siemens" for product "Solid Edge"
se2021
Search vendor "Siemens" for product "Solid Edge" and version "se2021"
-
Affected
Siemens
Search vendor "Siemens"
Solid Edge
Search vendor "Siemens" for product "Solid Edge"
se2021
Search vendor "Siemens" for product "Solid Edge" and version "se2021"
maintenance_pack1
Affected