aurelia/path · Security
Prototype pollution in aurelia-path
- GHSA ID
- GHSA-3c9c-2p65-qvwv
- CVE ID
- CVE-2021-41097
- Severity
- critical
- Published
- Updated
- CVSS
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS v3
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
Impact
The vulnerability exposes Aurelia application that uses aurelia-path package to parse a string. The majority of this will be Aurelia applications that employ the aurelia-router package. An example is this could allow an attacker to change the prototype of base object class Object by tricking an application to parse the following URL: https://aurelia.io/blog/?__proto__[asdf]=asdf
Patches
The problem should be patched in version 1.1.7. Any version earlier than this is vulnerable.
Workarounds
A partial work around is to free the Object prototype:
Object.freeze(Object.prototype)
CWEs
- CWE-915 · Improperly Controlled Modification of Dynamically-Determined Object Attributes
- CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
References
- https://github.com/aurelia/path/security/advisories/GHSA-3c9c-2p65-qvwv ↗
- https://github.com/aurelia/path/issues/44 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2021-41097 ↗
- https://github.com/aurelia/path/commit/7c4e235433a4a2df9acc313fbe891758084fdec1 ↗
- https://github.com/aurelia/path/releases/tag/1.1.7 ↗
- https://www.npmjs.com/package/aurelia-path ↗
- https://github.com/advisories/GHSA-3c9c-2p65-qvwv ↗