Log4Shell (CVE-2021-44228) Vulnerability Detection
log4shell-detection is a critical severity check in the
web category, written in shell.
Its source is templates/web/log4shell/are-vulnerable-log4shell.sh in
cert-x-gen-templates.
What it checks
Section titled “What it checks”Detects Log4Shell vulnerability by injecting JNDI payloads into HTTP headers
Header
Section titled “Header”| Field | Value |
|---|---|
| Id | log4shell-detection |
| Severity | critical |
| Language | shell |
| Category | web |
| Author | CERT-X-GEN Security Team |
| Template version | not recorded |
| Confidence | 85 |
| CVSS | not recorded |
| Weakness | CWE-502 |
| Tags | log4shell, cve-2021-44228, rce, jndi, java |
| Target kind | not recorded |
| Oracle | not recorded |
Run it
Section titled “Run it”To see what the copy on your machine says about itself, and to confirm it is installed at all:
cxg template info log4shell-detectionThe id it prints is the one to pass anywhere a template is selected. See
cxg template for the rest of
the subcommand, Scan a target for running
a scan, and
A match is not a finding for how
to read what comes back.
Related
Section titled “Related”- Template catalog is the whole corpus.
- web is the rest of this category.
- Templates by weakness class groups checks by the defect they look for.
- Contribute a template is the route from a check you needed and could not find to a merged one.