Resource exhaustion in Garycourt Uri-Js
CVE-2017-16021
uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular expression is vulnerable to redos. This causes the program to hang and the CPU to idle at 100% usage while uri-js is trying to validate if the supplied URL is valid or not. To check if you're vulnerable, look for a call to `require("uri-js").parse()` where a user is able to send their own input. This affects uri-js 2.1.1 and earlier.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (70.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Garycourt Uri-Js
- HackerOne Uri-Js Node Module — versions <=2.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/garycourt/uri-js/issues/12 (Exploit, Third Party Advisory, Issue Tracking)
- nodesecurity.io/advisories/100 (Third Party Advisory, Broken Link)
Frequently asked questions
- What is CVE-2017-16021?
- CVE-2017-16021 is a medium-severity vulnerability in Garycourt Uri-Js, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2018-06-04.
- How severe is CVE-2017-16021?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2017-16021 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.