AfreecaTV Service Port 21201 strcpy FanTicket integer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.8$0-$5k0.00

Summaryinfo

A vulnerability was found in AfreecaTV. It has been declared as critical. The affected element is the function strcpy of the component Service Port 21201. Executing a manipulation of the argument FanTicket can lead to integer overflow. This vulnerability is registered as CVE-2020-7881. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in AfreecaTV (version now known). It has been declared as critical. This vulnerability affects the function strcpy of the component Service Port 21201. The manipulation of the argument FanTicket with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 11/26/2021. The advisory is available at boho.or.kr. This vulnerability was named CVE-2020-7881 since 01/22/2020. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/02/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (KrCERT/CC): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2020 🔍
11/26/2021 +674 days 🔍
11/26/2021 +0 days 🔍
12/02/2021 +6 days 🔍

Sourcesinfo

Advisory: boho.or.kr
Status: Not defined

CVE: CVE-2020-7881 (🔍)
GCVE (CVE): GCVE-0-2020-7881
GCVE (VulDB): GCVE-100-187270

Entryinfo

Created: 11/26/2021 20:34
Updated: 12/02/2021 09:59
Changes: 11/26/2021 20:34 (47), 12/02/2021 09:57 (1), 12/02/2021 09:59 (18)
Complete: 🔍
Cache ID: 216::103

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