Informazioni sul CVE-2022-46175
N/A
CWE ID: CWE-1321
Base Score (CVSS): N/A
CVE: CVE-2022-46175
Descrizione: JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). The `parse` method of the JSON5 library before and including versions 1.0.1 and 2.2.1 does not restrict parsing of keys named `__proto__`, allowing specially crafted strings to pollute the prototype of the resulting object. This vulnerability pollutes the prototype of the object returned by `JSON5.parse` and not the global Object prototype, which is the commonly understood definition of Prototype Pollution. However, polluting the prototype of a single object can have significant security impact for an application if the object is later used in trusted operations. This vulnerability could allow an attacker to set arbitrary and unexpected keys on the object returned from `JSON5.parse`. The actual impact will depend on how applications utilize the returned object and how they filter unwanted keys, but could include denial of service, cross-site scripting, elevation of privilege, and in extreme cases, remote code execution. `JSON5.parse` should restrict parsing of `__proto__` keys when parsing JSON strings to objects. As a point of reference, the `JSON.parse` method included in JavaScript ignores `__proto__` keys. Simply changing `JSON5.parse` to `JSON.parse` in the examples above mitigates this vulnerability. This vulnerability is patched in json5 versions 1.0.2, 2.2.2, and later.
Vettore di attacco CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
Punteggio CVSS
Il CVSS è un sistema di valutazione che misura la gravità di una vulnerabilità informatica considerando fattori come l’impatto potenziale, la probabilità di attacco e la facilità di esecuzione.
Riassunto: Accesso: Network, Privilegi: Low, Interazione utente: None, Confidenzialità: High, Integrità: Low, Disponibilità: High.
Dettaglio del Vettore
| Metrica | Valore | Significato | Descrizione |
|---|---|---|---|
| Attack Vector (AV) | N | Network | L’attacco può essere eseguito da remoto attraverso la rete. |
| Attack Complexity (AC) | H | High | L’attacco richiede condizioni particolari o avanzate. |
| Privileges Required (PR) | L | Low | Richiede pochi privilegi. |
| User Interaction (UI) | N | None | Non è richiesta interazione dell’utente. |
| Scope (S) | U | Unchanged | Il raggio d’azione non cambia. |
| Confidentiality Impact (C) | H | High | Grave impatto sulla riservatezza. |
| Integrity Impact (I) | L | Low | Impatto limitato. |
| Availability Impact (A) | H | High | Rende il sistema inutilizzabile. |
Riferimenti esterni
- https://github.com/json5/json5/security/advisories/GHSA-9c47-m6qq-7p4h
- https://github.com/json5/json5/issues/199
- https://github.com/json5/json5/issues/295
- https://github.com/json5/json5/pull/298
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3S26TLPLVFAJTUN3VIXFDEBEXDYO22CE/
- https://lists.debian.org/debian-lts-announce/2023/11/msg00021.html
Prodotti interessati
- json5 – json5
Relazioni con altri prodotti
Produttore:json5
Prodotto: json5
Anno: 2022
CWE: CWE-1321
CVSS: 0.0