// For flags

CVE-2020-5230

Opencast uses unsafe identifiers

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Opencast before 8.1 and 7.6 allows almost arbitrary identifiers for media packages and elements to be used. This can be problematic for operation and security since such identifiers are sometimes used for file system operations which may lead to an attacker being able to escape working directories and write files to other locations. In addition, Opencast's Id.toString(…) vs Id.compact(…) behavior, the latter trying to mitigate some of the file system problems, can cause errors due to identifier mismatch since an identifier may unintentionally change. This issue is fixed in Opencast 7.6 and 8.1.

Opencast anterior a las versiones 8.1 y 7.6 permite utilizar identificadores casi arbitrarios para paquetes y elementos de medios. Esto puede ser problemático para la operación y la seguridad, ya que tales identificadores a veces se usan para las operaciones del sistema de archivos, lo que puede llevar a un atacante a escapar de directorios de trabajo y escribir archivos en otras ubicaciones. Además, el comportamiento Id.toString (...) vs Id.compact (...) de Opencast, este último tratando de mitigar algunos de los problemas del sistema de archivos, puede causar errores debido a la falta de coincidencia del identificador ya que un identificador puede cambiar involuntariamente. Este problema se soluciona en Opencast 7.6 y 8.1.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
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
  • 2020-01-02 CVE Reserved
  • 2020-01-30 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-99: Improper Control of Resource Identifiers ('Resource Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apereo
Search vendor "Apereo"
 Opencast
Search vendor "Apereo" for product "Opencast"
 < 7.6
Search vendor "Apereo" for product "Opencast" and version " < 7.6"
-
Affected
Apereo
Search vendor "Apereo"
 Opencast
Search vendor "Apereo" for product "Opencast"
 8.0
Search vendor "Apereo" for product "Opencast" and version "8.0"
-
Affected