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[email protected]CVE-2017-16030

HistoryJun 04, 2018 - 7:29 p.m.

CVE-2017-16030

2018-06-0419:29:01

CWE-400

[email protected]

web.nvd.nist.gov

cve-2017-16030

useragent

server block

vulnerability

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

47.3%

JSON

Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier.

Affected configurations

NVD

Node

useragent_projectuseragentRange≤2.1.12node.js

CPENameOperatorVersion
useragent_project:useragentuseragent project useragentle2.1.12

CPE	Name	Operator	Version
useragent_project:useragent	useragent project useragent	le	2.1.12

CNA Affected

[
  {
    "product": "useragent node module",
    "vendor": "HackerOne",
    "versions": [
      {
        "status": "affected",
        "version": "<=2.1.12"
      }
    ]
  }
]