Mattermost Server up to 5.9.x Post File ID input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Mattermost Server up to 5.9.x and classified as critical. This affects an unknown function of the component Post File ID Handler. Executing a manipulation can lead to input validation. This vulnerability is registered as CVE-2019-20870. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mattermost Server up to 5.9.x and classified as critical. This vulnerability affects an unknown code of the component Post File ID Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Mattermost Server before 5.10.0. An attacker can bypass the intended appearance of the Edited flag after changing a post's file ID.

The weakness was published 06/19/2020 (Website). The advisory is shared for download at mattermost.com. This vulnerability was named CVE-2019-20870 since 06/19/2020. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.10.0 eliminates this vulnerability.

Similar entries are available at VDB-156956, VDB-156957, VDB-156958 and VDB-156959. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
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: Input validation
CWE: CWE-20
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost Server 5.10.0

Timelineinfo

06/19/2020 🔍
06/19/2020 +0 days 🔍
06/20/2020 +1 days 🔍
10/25/2020 +127 days 🔍

Sourcesinfo

Advisory: mattermost.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-20870 (🔍)
GCVE (CVE): GCVE-0-2019-20870
GCVE (VulDB): GCVE-100-157000
See also: 🔍

Entryinfo

Created: 06/20/2020 07:59
Updated: 10/25/2020 17:59
Changes: 06/20/2020 07:59 (39), 06/20/2020 08:04 (17), 10/25/2020 17:59 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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