Products
Fides
- 2.39.1
Source
security-advisories@github.com
Tags
CVE-2024-38537 details
Last Modified : July 2, 2024, 8:15 p.m.
Description
Fides is an open-source privacy engineering platform. `fides.js`, a client-side script used to interact with the consent management features of Fides, used the `polyfill.io` domain in a very limited edge case, when it detected a legacy browser such as IE11 that did not support the fetch standard. Therefore it was possible for users of legacy, pre-2017 browsers who navigate to a page serving `fides.js` to download and execute malicious scripts from the `polyfill.io` domain when the domain was compromised and serving malware. No exploitation of `fides.js` via `polyfill.io` has been identified as of time of publication. The vulnerability has been patched in Fides version `2.39.1`. Users are advised to upgrade to this version or later to secure their systems against this threat. On Thursday, June 27, 2024, Cloudflare and Namecheap intervened at a domain level to ensure `polyfill.io` and its subdomains could not resolve to the compromised service, rendering this vulnerability unexploitable. Prior to the domain level intervention, there were no server-side workarounds and the confidentiality, integrity, and availability impacts of this vulnerability were high. Clients could ensure they were not affected by using a modern browser that supported the fetch standard.
CVSS Score
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Weakness
Weakness | Name | Description |
---|---|---|
CWE-829 | Inclusion of Functionality from Untrusted Control Sphere | The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
NONE
Base Score
0.0
Exploitability Score
3.9
Impact Score
0.0
Base Severity
NONE
Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
References
URL | Source |
---|---|
https://fetch.spec.whatwg.org | security-advisories@github.com |
https://github.com/ethyca/fides/commit/868c4d629760572192bd61db34f5a4458ed12005 | security-advisories@github.com |
https://github.com/ethyca/fides/pull/5026 | security-advisories@github.com |
https://github.com/ethyca/fides/security/advisories/GHSA-cvw4-c69g-7v7m | security-advisories@github.com |
https://sansec.io/research/polyfill-supply-chain-attack | security-advisories@github.com |