WinSCP 5.17.8 FTP Server denial of service

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 (≈)
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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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in WinSCP 5.17.8. The impacted element is an unknown function of the component FTP Server Handler. The manipulation leads to denial of service. This vulnerability is listed as CVE-2020-28864. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in WinSCP 5.17.8 (Connectivity Software). It has been rated as problematic. This issue affects some unknown functionality of the component FTP Server Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was presented 11/24/2020. The advisory is shared at winscp.net. The identification of this vulnerability is CVE-2020-28864. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

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

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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

11/16/2020 🔍
11/24/2020 +8 days 🔍
11/24/2020 +0 days 🔍
12/10/2020 +16 days 🔍

Sourcesinfo

Advisory: winscp.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-28864 (🔍)
GCVE (CVE): GCVE-0-2020-28864
GCVE (VulDB): GCVE-100-165293

Entryinfo

Created: 11/24/2020 08:12
Updated: 12/10/2020 08:32
Changes: 11/24/2020 08:12 (37), 12/10/2020 08:30 (2), 12/10/2020 08:32 (18)
Complete: 🔍
Cache ID: 216::103

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