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Denial of Service (DoS) Affecting github.com/mattermost/mattermost-server/v6/api4 package, versions <6.0.3

0.0
medium

Snyk CVSS

    Attack Complexity High
    Privileges Required High
    Scope Changed
    Confidentiality High

    Threat Intelligence

    EPSS 0.15% (51st percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERV6API4-2869133
  • published 13 Jun 2022
  • disclosed 13 Jun 2022
  • credit streamer45
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Introduced: 13 Jun 2022

CVE-2021-37861 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade github.com/mattermost/mattermost-server/v6/api4 to version 6.0.3 or higher.

Overview

github.com/mattermost/mattermost-server/v6/api4 is an open source, private cloud, Slack-alternative from https://mattermost.org.

Affected versions of this package are vulnerable to Denial of Service (DoS) due to improper sanitization of user's password in audit logs when user creation fails.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package