Http-signature is a "Reference implementation of Joyent's HTTP Signature Scheme". In versions <=0.9.11, http-signature signs only the header values, but not the header names. This makes http-signature vulnerable to header forgery. Thus, if an attacker can intercept a request, he can swap header names and change the meaning of the request without changing the signature.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-16005 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | High |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-nodejs6-nodejs-http-signature | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-nodejs4-nodejs-http-signature | Not affected |
| Red Hat OpenShift Enterprise 3 | nodejs-http-signature | Not affected |
| Red Hat Mobile Application Platform On-Premise 4 | nodejs-http-signature | Not affected |
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