GHSA-46c5-pfj8-fv65 – pocketmine/pocketmine-mp

Package

Manager: composer
Name: pocketmine/pocketmine-mp
Vulnerable Version: >=0 <4.2.4

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Improperly checked metadata on tools/armour itemstacks received from the client ### Impact Due to a workaround applied in 1.13, an attacker may send a negative damage/meta value in a tool or armour item's NBT, which `TypeConverter` then blindly uses as if it was valid without being checked. When this invalid metadata value reaches `Durable->setDamage()`, an exception is thrown because the metadata is not within the expected range for damage values. This can be reproduced with either a too-large damage value, or a negative one. ### Patches c8e1cfcbee4945fd4b63d2a7e96025c59744d4f1 ### Workarounds In theory this can be checked by plugins using a custom `TypeConverter`, but this is likely to be very cumbersome. ### For more information * Email us at [team@pmmp.io](mailto:team@pmmp.io)

Metadata

Created: 2022-03-18T22:36:03Z
Modified: 2022-03-18T22:36:03Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/03/GHSA-46c5-pfj8-fv65/GHSA-46c5-pfj8-fv65.json
CWE IDs: ["CWE-704"]
Alternative ID: N/A
Finding: F113
Auto approve: 1