Quick answers
- Is CVE-2021-45851 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2021-45851 being exploited in the wild.
- How severe is CVE-2021-45851?
- Low severity, with a CVSS score of 3.1, published 17 March 2022.
- Which products and versions are affected?
- @frangoteam/fuxa (npm) SEMVER:introduced=0,last_affected=1.1.3.
- Is there a fix for CVE-2021-45851?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2021-45851 attacked?
- It is attacked over the network.
- Am I affected by CVE-2021-45851?
- Check whether you run @frangoteam/fuxa (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a classic Server-Side Request Forgery (CWE-918) present in FUXA 1.1.3 and earlier. The affected component fails to properly validate or restrict outbound requests made by the server, allowing an unauthenticated network attacker to craft malicious input that causes the server to initiate requests to internal resources and services. An attacker can exploit this to access metadata services, internal APIs, and local services running on the affected host or network, potentially leading to information disclosure and command execution. The vulnerability requires network access but no authentication or user interaction.
Affected products
- FUXA FUXA 1.1.3 and earlier
Identifiers
- CVE-2021-45851
- GHSA-9vp3-7qwq-83r9
Timeline
- 2022-03-16: disclosed
- 2022-03-17: advisory