CVE-2021-42013
critical
KEV
CVSS v3
—
CVSS v2
—
VIR risk
10.0
Description
Apache HTTP Server contains a path traversal vulnerability that allows an attacker to perform remote code execution if files outside directories configured by Alias-like directives are not under default require all denied or if CGI scripts are enabled. This CVE ID resolves an incomplete patch for CVE-2021-41773.
CISA KEV
- Vendor
- Apache
- Product
- HTTP Server
- Due date
- 2021-11-17
Predictions
Exploit likelihood
99%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cisa-kev — https://nvd.nist.gov/vuln/detail/CVE-2021-42013
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-42013
Vendor advisory: arch — https://security.archlinux.org/ASA-202110-1
Exploits
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.4.51-1 | |
| debian | bookworm | fixed | 2.4.51-1 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 2.4.51-1 |
| debian | sid | fixed | 2.4.51-1 |
| debian | trixie | fixed | 2.4.51-1 |
References
Verify integrity in audit chain (admin only). AS-IS.