Improper Access Control Affecting github.com/mattermost/mattermost/server/platform/services/sharedchannel package, versions <9.5.7>=9.9.0 <9.9.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPLATFORMSERVICESSHAREDCHANNEL-7577968
- published2 Aug 2024
- disclosed1 Aug 2024
- creditJuho Forsén
Introduced: 1 Aug 2024
CVE-2024-41926 Â (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/platform/services/sharedchannel to version 9.5.7, 9.9.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control due to the failure in validating the source of sync messages which only allow the correct remote IDs. An attacker can set arbitrary RemoteId values for synced users and claim that a user was synced from another remote by exploiting this validation flaw.