by Kastro
Paper/Archive/CVE-2021-33790

CVE-2021-33790

mitre — The RebornCore library before 4.7.3 allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject a…

EPSS 3%CVSS 9.8
critical.is priorityof 100
47
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 86.7.867 × 2017.3No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

The RebornCore library before 4.7.3 allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of reborncore.common.network.ExtendedPacketBuffer. An attacker can instantiate any class on the classpath with any data. A class usable for exploitation might or might not be present, depending on what Minecraft modifications are installed.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refcurseforge.com/minecraft/mc-mods/reborncorerefvuln.ryotak.me/advisories/45refgithub.com/TechReborn/RebornCore/security/advisories/GHSA-r7pg-4xrf-7mrm