Improper input validation in Netmask Project
CVE-2021-29418
The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/rs/node-netmask/commit/3f19a056c4eb808ea4a29f234274c67bc5a848f4 (Patch, Third Party Advisory)
- vuln.ryotak.me/advisories/6 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20210604-0001/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-29418?
- CVE-2021-29418 is a medium-severity vulnerability in Netmask Project, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2021-03-30.
- How severe is CVE-2021-29418?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-29418 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.