CVE - CVE-2021-39177

CVE-ID
CVE-2021-39177	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Geyser is a bridge between Minecraft: Bedrock Edition and Minecraft: Java Edition. Versions of Geyser prior to 1.4.2-SNAPSHOT allow anyone that can connect to the server to forge a LoginPacket with manipulated JWT token allowing impersonation as any user. Version 1.4.2-SNAPSHOT contains a patch for the issue. There are no known workarounds aside from upgrading.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/GeyserMC/Geyser/security/advisories/GHSA-h77f-xxx7-4858 URL:https://github.com/GeyserMC/Geyser/security/advisories/GHSA-h77f-xxx7-4858 MISC:https://github.com/GeyserMC/Geyser/commit/b9541505af68ac7b7c093206ac7b1ba88957a5a6 URL:https://github.com/GeyserMC/Geyser/commit/b9541505af68ac7b7c093206ac7b1ba88957a5a6 MISC:https://updates.playhive.com/weekend-maintenance-disclosure-2kJMaY URL:https://updates.playhive.com/weekend-maintenance-disclosure-2kJMaY
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210816	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210816)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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