CVE•Published 2018-07-18•1 article on news•6 live references•NVD data

CVE-2018-8011

Vulnerability data via CVEDB (Shodan)

CVSS v3.1

7.5

HIGH

EPSS percentile

Exploit Prediction Scoring System · top 1% of all CVEs

Description

By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.33).

Timeline

Published 2018-07-18

External references

NVD MITRE Exploit-DB Sploitus trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag10,868 hosts

vuln:CVE-2018-8011

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product + version

product:"Apache Http Server" version:"2.4.33"

Version-pinned fingerprint from NVD's first vulnerable CPE.

Shodan · banner/body mention

http.html:"Http Server"

HTTP body or banner mentions "Http Server" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2018-8011