CVE-2021-44790: falha em Apache HTTP Server
Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
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Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
45Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendepss 97%
da publicação à arma467 dias
Publicada no NVD20 de dez.
1ª PoC+467d
O que os fabricantes declaram (VEX)
Declarações oficiais dos fabricantes em formato CSAF/VEX: se o produto deles está afetado, já corrigido ou descartado — e por quê. É afirmação do fabricante, não juízo do Vexday.
Red Hatdocumento VEX ↗
Afetado
1 produto (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.
Corrigido
28 produtos (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) · e outros 23
Não afetado
3 produtos (19 componentes) — porque o código vulnerável não está presente no produto
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.
Produtos afetados
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.htmlnão verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
CVEs relacionadas — Apache HTTP Server
No mesmo produto, das mais perigosas para as 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%
Referências
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