full-disclosure - ZDI-11-154: Sybase M-Business Anywhere agSoap.exe password Tag Remote Code Execution Vulnerability

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Message-ID: <AF6E290B52139041BD6CA591212E455B57623B6366@GVW0442EXB.americas.hpqcorp.net>
Date: Mon, 9 May 2011 19:01:37 +0000
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>, 
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-11-154: Sybase M-Business Anywhere agSoap.exe
 password Tag Remote Code Execution Vulnerability

ZDI-11-154: Sybase M-Business Anywhere agSoap.exe password Tag Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-154

May 9, 2011

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
Sybase

-- Affected Products:
Sybase MBusiness Anywhere

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11138. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Sybase M-Business Anywhere. Authentication
is not required to exploit this vulnerability.

The specific flaw exists within the gsoap.exe module exposed by the
webserver that listens by default on TCP ports 8093 and 8094. A remote
user can send an specially crafted SOAP packet with an invalid
'password' closing tag via a POST request to the web server to trigger a
buffer overflow in this module. Exploitation of this issue leads to
remote code execution under the context of the target service.

-- Vendor Response:
Sybase has issued an update to correct this vulnerability. More
details can be found at:

http://www.sybase.com/detail?id=1093029

-- Disclosure Timeline:
2011-01-20 - Vulnerability reported to vendor
2011-05-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * AbdulAziz Hariri

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
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exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

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