// For flags

CVE-2009-4445

 

Severity Score

6.0
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Microsoft Internet Information Services (IIS), when used in conjunction with unspecified third-party upload applications, allows remote attackers to create empty files with arbitrary extensions via a filename containing an initial extension followed by a : (colon) and a safe extension, as demonstrated by an upload of a .asp:.jpg file that results in creation of an empty .asp file, related to support for the NTFS Alternate Data Streams (ADS) filename syntax. NOTE: it could be argued that this is a vulnerability in the third-party product, not IIS, because the third-party product should be applying its extension restrictions to the portion of the filename before the colon.

Microsoft Internet Information Services (IIS), cuando es utilizado junto con aplicaciones de subida de archivos de terceras partes sin especificar, permite a atacantes remotos crear ficheros vacíos con extensiones de su elección a través de un nombre de fichero que contiene una extensión inicial seguida por : (dos puntos) y una extensión segura; como se ha demostrado con la subida de un fichero .asp:.jpg que resulta en la creacción de un fichero vacío .asp. Relacionado con el soporte de la sintaxis de nombres de ficheros de NTFS Alternate Data Streams (ADS). NOTA: se podría decir que es una vulnerabilidad del producto de terceras partes, no de IIS, porque el producto de terceras partes debería imponer restricciones a las extensiones en la porción de nombre de fichero anterior a los dos puntos.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2009-12-29 CVE Reserved
  • 2009-12-29 CVE Published
  • 2024-08-07 CVE Updated
  • 2024-09-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Internet Information Services
Search vendor "Microsoft" for product "Internet Information Services"
<= 6.0
Search vendor "Microsoft" for product "Internet Information Services" and version " <= 6.0"
-
Affected