CVE-2021-44790: fallo en Apache HTTP Server
Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
Publicada el · Actualizada el
45Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendepss 97%
de la publicación al arma467 días
Publicada en NVD20 dic
1ª PoC+467d
probabilidad de explotación
97%top 1% de las CVE
explotación observada
noninguna fuente lo reporta
5 exploit(s) público(s)
Lo que declaran los fabricantes (VEX)
Declaraciones oficiales de los fabricantes en formato CSAF/VEX: si su producto está afectado, ya corregido o descartado — y por qué. Es afirmación del fabricante, no juicio de Vexday.
Red Hatdocumento VEX ↗
Afectado
1 producto (7 componentes)
Red Hat JBoss Enterprise Application Platform 6
workaround: Disabling mod_lua and restarting httpd will mitigate this flaw. See https://access.redhat.com/articles/10649 for more information.
Corregido
28 productos (508 componentes)
Red Hat Enterprise Linux AppStream (v. 8) · Red Hat Enterprise Linux AppStream EUS (v. 8.2) · Red Hat Enterprise Linux AppStream EUS (v.8.4) · Red Hat Enterprise Linux AppStream E4S (v. 8.1) · Red Hat Enterprise Linux Server (v. 7) · y otros 23
No afectado
3 productos (19 componentes) — porque el código vulnerable no está presente en el producto
Red Hat Enterprise Linux 9 · Red Hat Enterprise Linux 6 · Red Hat JBoss Core Services
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.
Productos afectados
Apache Software Foundation · Apache HTTP ServerPoCs públicas encontradas — 5✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/51193githubgithub.com/nuPacaChi/-CVE-2021-44790★ 4githubgithub.com/CerberusMrXi/Apache-Lua-Buffer-Overflow-Exploit-CVE-2021-44790★ 1githubgithub.com/MohammadAliMehri/cve-2021-44790-lab★ 0cve_referencepacketstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.htmlno verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — Apache HTTP Server
En el mismo producto, de las más peligrosas a las menos.
CVE-2021-40438CRITICALmod_proxy SSRFEPSS 100.0%KEVCVE-2021-41773HIGHPath traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49EPSS 100.0%KEVCVE-2021-42013CRITICALPath Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)EPSS 100.0%KEVCVE-2024-38475CRITICALApache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.EPSS 100.0%KEVCVE-2017-9798—CVE-2017-9798EPSS 95.0%CVE-2024-27316HIGHApache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation framesEPSS 91.3%
Referencias
http://httpd.apache.org/security/vulnerabilities_24.htmlhttp://packetstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.htmlhttp://seclists.org/fulldisclosure/2022/May/33http://seclists.org/fulldisclosure/2022/May/35http://seclists.org/fulldisclosure/2022/May/38https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/https://security.gentoo.org/glsa/202208-20https://security.netapp.com/advisory/ntap-20211224-0001/https://support.apple.com/kb/HT213255