Bug 1293847 - (CVE-2015-8622, CVE-2015-8623, CVE-2015-8624, CVE-2015-8625, CVE-2015-8626, CVE-2015-8627, CVE-2015-8628) CVE-2015-8622 CVE-2015-8623 CVE-2015-8624 CVE-2015-8625 CVE-2015-8626 CVE-2015-8627 CVE-2015-8628 mediawiki: multiple flaws fixed in 1.26.1, 1.25.4, 1.24.5, and 1.23.12
CVE-2015-8622 CVE-2015-8623 CVE-2015-8624 CVE-2015-8625 CVE-2015-8626 CVE-201...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On: 1293849 1293848
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Reported: 2015-12-23 04:30 EST by Martin Prpič
Modified: 2016-11-18 17:26 EST (History)
4 users (show)

See Also:
Fixed In Version: mediawiki 1.26.1, mediawiki 1.25.4, mediawiki 1.24.5, mediawiki 1.23.12
Doc Type: Bug Fix
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RHEL 7.3 requirements from Atomic Host:
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Description Martin Prpič 2015-12-23 04:30:31 EST
Several flaws were found in Mediawiki:

* (T117899) XSS from wikitext when $wgArticlePath='$1'. Internal review
discovered an XSS vector when MediaWiki is configured with a non-standard

* (T119309) User::matchEditToken should use constant-time string
comparison. Internal review discovered that tokens were being compared as
strings, which could allow a timing attack. This should possibly have 2
CVE's assigned, one for the original patch to use hash_equals in
https://gerrit.wikimedia.org/r/#/c/156336/5/includes/User.php (released as
part of MediaWiki 1.25, and backported to 1.24 and 1.23 as part of this
patch) and one to fix T119309, related to the debugging statement.

* (T118032) Error thrown by VirtualRESTService when POST variable starts
with '@'. Internal review discovered that MediaWiki was not sanitizing
parameters passed to the curl library, which could cause curl to upload
files from the webserver to an attacker.

* (T115522) Passwords generated by User::randomPassword() may be shorter
than $wgMinimalPasswordLength. MediaWiki user Frank R. Farmer reported that
the password reset token could be shorter than the minimum required
password length.

* (T97897) Incorrect parsing of IPs for global block. Wikimedia steward
Vituzzu reported that blocking IP addresses with zero-padded octets
resulted in a failure to block the IP address.

* (T109724) A combination of Special:MyPage redirects and pagecounts allows
an external site to know the wikipedia login of an user. Wikimedia
user Xavier Combelle reported a way to identify user, when detailed page
view data is also released.

CVE request and original report:

Comment 1 Martin Prpič 2015-12-23 04:31:04 EST
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 1293848]
Affects: epel-all [bug 1293849]
Comment 2 Fedora Update System 2016-01-02 17:20:30 EST
mediawiki-1.26.2-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2016-01-07 22:26:42 EST
mediawiki-1.26.2-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

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