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httpdApache Team FoundationHTTPD:30E0EE442FF4843665FED4FBCA25406A
HistoryJul 02, 2016 - 12:00 a.m.

Apache Httpd < 2.2.32 : HTTP_PROXY environment variable "httpoxy" mitigation

2016-07-0200:00:00
Apache Team Foundation
httpd.apache.org
38
apache httpd
http_proxy
httpoxy
mitigation
cgi process
environment variable
libraries
proxy header
iana
workaround
patch
asf advisory
software

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.176

Percentile

96.2%

HTTP_PROXY is a well-defined environment variable in a CGI process, which collided with a number of libraries which failed to avoid colliding with this CGI namespace. A mitigation is provided for the httpd CGI environment to avoid populating the “HTTP_PROXY” variable from a “Proxy:” header, which has never been registered by IANA. This workaround and patch are documented in the ASF Advisory at asf-httpoxy-response.txt and incorporated in the 2.4.25 and 2.2.32 releases. Note: This is not assigned an httpd severity, as it is a defect in other software which overloaded well-established CGI environment variables, and does not reflect an error in HTTP server software.

Affected configurations

Vulners
Node
apacheapache_httpdMatch2.2.31
OR
apacheapache_httpdMatch2.2.29
OR
apacheapache_httpdMatch2.2.27
OR
apacheapache_httpdMatch2.2.26
OR
apacheapache_httpdMatch2.2.25
OR
apacheapache_httpdMatch2.2.24
OR
apacheapache_httpdMatch2.2.23
OR
apacheapache_httpdMatch2.2.22
OR
apacheapache_httpdMatch2.2.21
OR
apacheapache_httpdMatch2.2.20
OR
apacheapache_httpdMatch2.2.19
OR
apacheapache_httpdMatch2.2.18
OR
apacheapache_httpdMatch2.2.17
OR
apacheapache_httpdMatch2.2.16
OR
apacheapache_httpdMatch2.2.15
OR
apacheapache_httpdMatch2.2.14
OR
apacheapache_httpdMatch2.2.13
OR
apacheapache_httpdMatch2.2.12
OR
apacheapache_httpdMatch2.2.11
OR
apacheapache_httpdMatch2.2.10
OR
apacheapache_httpdMatch2.2.9
OR
apacheapache_httpdMatch2.2.8
OR
apacheapache_httpdMatch2.2.6
OR
apacheapache_httpdMatch2.2.5
OR
apacheapache_httpdMatch2.2.4
OR
apacheapache_httpdMatch2.2.3
OR
apacheapache_httpdMatch2.2.2
OR
apacheapache_httpdMatch2.2.0
VendorProductVersionCPE
apacheapache_httpd2.2.31cpe:2.3:a:apache:apache_httpd:2.2.31:*:*:*:*:*:*:*
apacheapache_httpd2.2.29cpe:2.3:a:apache:apache_httpd:2.2.29:*:*:*:*:*:*:*
apacheapache_httpd2.2.27cpe:2.3:a:apache:apache_httpd:2.2.27:*:*:*:*:*:*:*
apacheapache_httpd2.2.26cpe:2.3:a:apache:apache_httpd:2.2.26:*:*:*:*:*:*:*
apacheapache_httpd2.2.25cpe:2.3:a:apache:apache_httpd:2.2.25:*:*:*:*:*:*:*
apacheapache_httpd2.2.24cpe:2.3:a:apache:apache_httpd:2.2.24:*:*:*:*:*:*:*
apacheapache_httpd2.2.23cpe:2.3:a:apache:apache_httpd:2.2.23:*:*:*:*:*:*:*
apacheapache_httpd2.2.22cpe:2.3:a:apache:apache_httpd:2.2.22:*:*:*:*:*:*:*
apacheapache_httpd2.2.21cpe:2.3:a:apache:apache_httpd:2.2.21:*:*:*:*:*:*:*
apacheapache_httpd2.2.20cpe:2.3:a:apache:apache_httpd:2.2.20:*:*:*:*:*:*:*
Rows per page:
1-10 of 281

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.176

Percentile

96.2%