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CVE-2021-42717Not scoredCWE-674

CVE-2021-42717: Owasp Modsecurity vulnerability

Owasp · Modsecurity

Vendor fix available · Affected: Owasp Modsecurity · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

3.3%probability of exploitation in the next 30 days
88th percentile
050100

Higher than 88% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Owasp
Published
December 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-42717 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References