PT-2017-2267 · Openbsd · Openbsd Httpd

Pierre Kim + 1 · Publicado 2017-03-27 · Atualizado 2019-10-03 · CVE-2017-5850

Positive Technologies (AI Summary)

CVSS v2.0

7.8

Alta

Vetor base

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions OpenBSD httpd (affected versions not specified)

Description The issue is related to resource management errors in the httpd component of the OpenBSD operating system. It can be exploited by a remote attacker to cause a denial of service, specifically memory consumption, by sending specially crafted requests using the HTTP Range header. This can be achieved by requesting a large file in a series of requests.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Allocation of Resources Without Limits

Enumeração de Fraquezas

CWE-770

CWE-399

Identificadores relacionados

BDU:2017-01464

CVE-2017-5850

Produtos afetados

Openbsd Httpd

Referências · 15

• 🔥 http://packetstormsecurity.com/files/140944/OpenBSD-HTTP-Server-6.0-Denial-Of-Service.html · Exploit
• 🔥 https://exploit-db.com/exploits/41278 · Exploit
• 🔥 https://pierrekim.github.io/blog/2017-02-07-openbsd-httpd-CVE-2017-5850.html · Exploit
• https://github.com/openbsd/src/commit/142cfc82b932bc211218fbd7bdda8c7ce83f19df · Correção
• https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/034_httpd.patch.sig · Aviso do Fabricante
• http://openwall.com/lists/oss-security/2017/02/02/6 · Nota
• http://seclists.org/fulldisclosure/2017/Feb/15 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2017-5850 · Nota de Segurança
• https://bdu.fstec.ru/vul/2017-01464 · Nota de Segurança
• https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/017_httpd.patch.sig · Aviso do Fabricante
• http://marc.info/?l=openbsd-cvs&m=148587359420912&w=2 · Nota
• https://osv.dev/vulnerability/CVE-2017-5850 · Aviso do Fabricante
• http://securityfocus.com/bid/95997 · Nota
• http://securitytracker.com/id/1037758 · Nota
• http://marc.info/?l=openbsd-cvs&m=148587359420912&w=2 · Nota