parse-server's session object properties can be updated by foreign user if object ID is known
Impact
A foreign user can write to the session object of another user if the session object ID is known. For example, a foreign user can assign the session object to their own user by writing to the user field and then read any custom fields of that session object.
Note that assigning a session to a foreign user does not usually change the privileges of neither of the two users, according to how Parse Server uses session objects internally. However, if custom logic is used to relate specific session objects to privileges this vulnerability may have a higher level of severity.
The vulnerability does not allow a foreign user to assign a session object to themselves, read the session token, and then reassign the session object to the original user to then authenticate as that user with the known session token. The vulnerability only exists for foreign session objects, a user cannot assign their own session to another user.
While it is unlikely that the session object ID of another user is known, it is possible to brute-force guess an object ID, even though the attacker would not know to which user a successfully guessed session object ID belongs.
Patches
The fix prevents writing to foreign session objects, even if the session object ID is known.
Workarounds
Add a beforeSave trigger to the _Session class and prevent writing if the requesting user is different from the user in the session object.
References
- GitHub advisory GHSA-6w4q-23cf-j9jp
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| npm-Paket | parse-server | < 4.10.15, >= 5.0.0, < 5.2.6 | 4.10.15, 5.2.6 |
Verweise
- https://github.com/parse-community/parse-server/security/advisories/GHSA-6w4q-23cf-j9jp
- https://nvd.nist.gov/vuln/detail/CVE-2022-39225
- https://github.com/parse-community/parse-server/commit/37fed3062ccc3ef1dfd49a9fc53318e72b3e4aff
- https://github.com/parse-community/parse-server
- https://github.com/parse-community/parse-server/releases/tag/4.10.15
- https://github.com/parse-community/parse-server/releases/tag/5.2.6
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Schwäche (CWE)
CWE-276, CWE-669- Plattform
- npm
- Paket
parse-server- Veröffentlicht
- 21.09.2022
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
OSV / GitHub Advisory Database - GHSA-6w4q-23cf-j9jp - CC BY 4.0
Schwachstellenhistorie: parse-server
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- Einträge insgesamt
- 116
- Erste → letzte
- 06.2019 06.2026
- Ohne Fix
- 0
- In Angriffen ausgenutzt
- 0
Verteilung nach Schweregrad
- Kritisch 17
- Hoch 49
- Mittel 40
- Niedrig 10
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- 2019: 2
- 2020: 4
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- 2022: 12
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parse-server's session object properties can be updated by foreign user if object ID is known dieser Eintrag
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