// For flags

CVE-2018-5731

 

Severity Score

7.0
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Heimdal PRO 2.2.190. As part of the scanning feature, a process called md.hs writes an executable called CS1.tmp to C:\windows\TEMP. Afterwards the executable is run. It is possible for an attacker to create the file first, let md.hs overwrite it, and then rewrite the file in the window between md.hs closing the file and executing it. This can be exploited via opportunistic locks and a high priority thread. The vulnerability is triggered when a scan starts. NOTE: any affected Heimdal products are completely unrelated to the Heimdal vendor of a Kerberos 5 product on the h5l.org web site.

Se ha descubierto un problema en Heimdal PRO 2.2.190. Como parte de la funcionalidad de escaneo, un proceso llamado md.hs escribe un ejecutable llamado CS1.tmp en C:\windows\TEMP. Posteriormente, se ejecuta este archivo. Es posible que un atacante cree primero el archivo, deje que md.hs lo sobrescriba y, entonces, reescriba el archivo en la ventana de tiempo entre que md.hs cierra el archivo y lo ejecuta. Esto se puede explotar mediante cierres oportunistas y un hilo de prioridad alta. La vulnerabilidad se desencadena cuando comienza un escáner. NOTA: ningún producto Heimdal afectado tiene relación con el fabricante Heimdal de un producto Kerberos 5 en el sitio web h5l.org.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
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
  • 2018-01-17 CVE Reserved
  • 2018-03-22 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
URL Tag Source
URL Date SRC
https://improsec.com/blog/heimdal-advisory-2 2024-08-05
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
Heimdalsecurity
Search vendor "Heimdalsecurity"
 Heimdal
Search vendor "Heimdalsecurity" for product "Heimdal"
 2.2.190
Search vendor "Heimdalsecurity" for product "Heimdal" and version "2.2.190"
pro
Affected