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CVE-2018-1283

Published: 26 March 2018

In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.

Priority

Low

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
upstream
Released (2.4.30)
trusty
Released (2.4.7-1ubuntu4.20)
xenial
Released (2.4.18-2ubuntu3.8)
artful
Released (2.4.27-2ubuntu4.1)
bionic
Released (2.4.29-1ubuntu4.1)
Patches:
upstream: https://svn.apache.org/viewvc?view=revision&revision=1824390
upstream: https://svn.apache.org/viewvc?view=revision&revision=1824477 (2.4)

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N