// For flags

CVE-2021-29488

Creation of files outside the Download Folder through malicious PAR2 files

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

SABnzbd is an open source binary newsreader. A vulnerability was discovered in SABnzbd that could trick the `filesystem.renamer()` function into writing downloaded files outside the configured Download Folder via malicious PAR2 files. A patch was released as part of SABnzbd 3.2.1RC1. As a workaround, limit downloads to NZBs without PAR2 files, deny write permissions to the SABnzbd process outside areas it must access to perform its job, or update to a fixed version.

SABnzbd es un lector de noticias binario de código abierto. Se detectó una vulnerabilidad en SABnzbd que podría engañar a la función "filesystem.renamer()" para escribir archivos descargados fuera de la carpeta de descarga configurada por medio de archivos PAR2 maliciosos. Un parche se lanzó como parte de SABnzbd versión 3.2.1RC1. Como solución alternativa, el límite descargas a los NZB sin archivos PAR2, niegue los permisos de escritura al proceso SABnzbd fuera de las áreas a las que debe acceder para llevar a cabo su trabajo o actualizar a una versión fija

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-30 CVE Reserved
  • 2021-05-07 CVE Published
  • 2024-01-21 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-23: Relative Path Traversal
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Sabnzbd
Search vendor "Sabnzbd"
 Sabnzbd
Search vendor "Sabnzbd" for product "Sabnzbd"
 < 3.0.0
Search vendor "Sabnzbd" for product "Sabnzbd" and version " < 3.0.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Sabnzbd
Search vendor "Sabnzbd"
 Sabnzbd
Search vendor "Sabnzbd" for product "Sabnzbd"
 < 3.2.1
Search vendor "Sabnzbd" for product "Sabnzbd" and version " < 3.2.1"
-
Affected
in Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
--
Safe
Sabnzbd
Search vendor "Sabnzbd"
 Sabnzbd
Search vendor "Sabnzbd" for product "Sabnzbd"
 < 3.2.1
Search vendor "Sabnzbd" for product "Sabnzbd" and version " < 3.2.1"
-
Affected
in Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
--
Safe