Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. (Apache Software Foundation Apache HTTP Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 99.96 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Analyzed
Description
Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
Weaknesses (CWE)
- CWE-116 — Improper Encoding or Escaping of Output
References
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://security.netapp.com/advisory/ntap-20240712-0001/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475
- https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227
- https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf
- http://www.openwall.com/lists/oss-security/2024/07/01/8
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2024-37356
- GCVE · GCVE-0-2024-38475
CERT-FR advisories
- CERTFR-2024-AVI-1042 — Multiples vulnérabilités dans Sonicwall Secure Mobile Access · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0750 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0676 — Multiples vulnérabilités dans Tenable Security Center · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0533 — Multiples vulnérabilités dans Apache HTTP Server · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*≥ 2.4.0 < 2.4.60cpe:2.3:a:netapp:ontap_9:-:*:*:*:*:*:*:*cpe:2.3:o:sonicwall:sma_200_firmware:*:*:*:*:*:*:*:*< 10.2.1.14-75svcpe:2.3:o:sonicwall:sma_210_firmware:*:*:*:*:*:*:*:*< 10.2.1.14-75svcpe:2.3:o:sonicwall:sma_400_firmware:*:*:*:*:*:*:*:*< 10.2.1.14-75svcpe:2.3:o:sonicwall:sma_410_firmware:*:*:*:*:*:*:*:*< 10.2.1.14-75svcpe:2.3:o:sonicwall:sma_500v_firmware:*:*:*:*:*:*:*:*< 10.2.1.14-75sv
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache HTTP Server | affected 2.4.0 ≤ 2.4.59 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |