Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2016-7964

Published: 31 October 2016

The sendRequest method in HTTPClient Class in file /inc/HTTPClient.php in DokuWiki 2016-06-26a and older, when media file fetching is enabled, has no way to restrict access to private networks. This allows users to scan ports of internal networks via SSRF, such as 10.0.0.1/8, 172.16.0.0/12, and 192.168.0.0/16.

Notes

AuthorNote
ebarretto
Setting status as ignored since upstream won't fix it.
According to maintainer:
The only way I see to properly fix this is to add a whitelist
feature where an Admin can define the external hosts and IPs
the wiki is allowed to contact. However for not breaking every
already installed wiki we would need to keep this list empty
(allowing all).
TBH I feel like it's not our task to secure other computers.
If a wiki server runs within a network that should not be
reached from that wiki server, the wiki server should be
isolated properly through at least outgoing firewall rules or
by a proper DMZ setup.

Priority

Medium

Cvss 3 Severity Score

8.6

Score breakdown

Status

Package Release Status
dokuwiki
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist
(trusty was ignored)
upstream Needs triage

artful Ignored
(end of life)
bionic Ignored

cosmic Ignored

xenial Ignored

yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 8.6
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N