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Debian DSA-3623-1 : apache2 - security update (httpoxy)

high Nessus Plugin ID 92475

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Synopsis

The remote Debian host is missing a security-related update.

Description

Scott Geary of VendHQ discovered that the Apache HTTPD server used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a CGI script to an attacker-controlled proxy via a malicious HTTP request.

Solution

Upgrade the apache2 packages.

For the stable distribution (jessie), this problem has been fixed in version 2.4.10-10+deb8u5.

See Also

https://packages.debian.org/source/jessie/apache2

https://www.debian.org/security/2016/dsa-3623

Plugin Details

Severity: High

ID: 92475

File Name: debian_DSA-3623.nasl

Version: 2.11

Type: local

Agent: unix

Published: 7/21/2016

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:apache2

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 7/20/2016

Reference Information

CVE: CVE-2016-5387

DSA: 3623