// For flags

CVE-2020-7881

AfreecaTV streamer service stack-based buffer overflow

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by "FanTicket" field. It is because of stored data without validation of length.

La función de la vulnerabilidad es habilitada cuando el servicio de streaming relacionado con AfreecaTV se comunica mediante el socket web usando el puerto 21201. Se ha detectado un desbordamiento del búfer en la región stack de la memoria, conllevando a una ejecución de código remota en la función strcpy() operada por el campo "FanTicket". Es debido a que los datos almacenados no comprueban su longitud

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-22 CVE Reserved
  • 2021-11-26 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-190: Integer Overflow or Wraparound
  • CWE-787: Out-of-bounds Write
CAPEC
References (1)
URL Tag Source
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357 Third Party Advisory
URL Date SRC
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
Afreecatv
Search vendor "Afreecatv"
 Afreecatv
Search vendor "Afreecatv" for product "Afreecatv"
 1.0.0.1
Search vendor "Afreecatv" for product "Afreecatv" and version "1.0.0.1"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe