CVE-2023-45143

2023-10-1217:15:10

CWE-200

[email protected]

web.nvd.nist.gov

410

undici

http/1.1 client

vulnerability

cve-2023-45143

security

node.js

cookie leakage

open redirector

3.9 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

5.2 Medium

AI Score

Confidence

High

JSON

Undici is an HTTP/1.1 client written from scratch for Node.js. Prior to version 5.26.2, Undici already cleared Authorization headers on cross-origin redirects, but did not clear Cookie headers. By design, cookie headers are forbidden request headers, disallowing them to be set in RequestInit.headers in browser environments. Since undici handles headers more liberally than the spec, there was a disconnect from the assumptions the spec made, and undici’s implementation of fetch. As such this may lead to accidental leakage of cookie to a third-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the third party site. This was patched in version 5.26.2. There are no known workarounds.

CPE configuration

Vulners

NVD

nodejsundiciRange<5.26.2

VendorProductVersionCPE
nodejsundici*cpe:2.3:a:nodejs:undici:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nodejs	undici	*	cpe:2.3:a:nodejs:undici::::::::

CNA Affected

[
  {
    "vendor": "nodejs",
    "product": "undici",
    "versions": [
      {
        "version": "< 5.26.2",
        "status": "affected"
      }
    ]
  }
]