Resource exhaustion in NetApp E-Series Performance Analyzer
CVE-2021-21267
Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn't vulnerable to ReDoS.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (80.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/schema-inspector/schema-inspector/security/advisories/GHSA-f38p-c2gq… (Exploit, Third Party Advisory)
- gist.github.com/mattwelke/b7f42424680a57b8161794ad1737cd8f (Exploit, Third Party Advisory)
- www.npmjs.com/package/schema-inspector (Exploit, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210528-0006/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21267?
- CVE-2021-21267 is a high-severity vulnerability in NetApp E-Series Performance Analyzer, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2021-03-19.
- How severe is CVE-2021-21267?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-21267 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.