PT-2018-1907 · Squid+5 · Squid Http Caching Proxy+6
Louis Dion-Marcil
·
Publicado
2018-01-29
·
Atualizado
2024-06-15
·
CVE-2018-1000027
CVSS v3.1
7.5
Alta
| Vetor | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Squid HTTP Caching Proxy versions prior to 4.0.23
Description
The issue is related to a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing. This can result in Denial of Service to all clients of the proxy. The attack appears to be exploitable via a remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP requests. Additionally, there is an issue with buffer overflow when processing ESI responses or loading intermediate certificate authority certificates, which can also lead to a Denial of Service.
Recommendations
For Squid HTTP Caching Proxy versions prior to 4.0.23, update to version 4.0.23 or later to resolve the issue. As a temporary workaround, consider restricting access to the X-Forwarded-For header in HTTP responses until the update is applied.
Exploit
Correção
DoS
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Red Hat
Squid Cache
Squid Http Caching Proxy
Suse
Ubuntu