Sybase M-Business Anywhere (AvantGo) gsoap Module password Tag Handling Overflow

This script is Copyright (C) 2011 Tenable Network Security, Inc.


Synopsis :

The remote SOAP server is vulnerable to a buffer overflow attack.

Description :

The Sybase M-Business Anywhere (AvantGo) software installed on the
remote host includes a SOAP server that fails to validate an XML end tag in
a SOAP request, resulting in a buffer overflow.

An unauthenticated, remote attacker can exploit this to execute
arbitrary code.

This plugin checks the heap overflow condition in the SOAP server by
submitting a request with a long XML end tag.

See also :

http://www.zerodayinitiative.com/advisories/ZDI-11-154/
http://archives.neohapsis.com/archives/bugtraq/2011-05/0072.html
http://www.sybase.com/detail?id=1093029

Solution :

Apply the appropriate patch from Sybase.

Note that the patches also address the vulnerabilities reported in
ZDI-11-155 (http://www.zerodayinitiative.com/advisories/ZDI-11-155/) and
ZDI-11-156 (http://www.zerodayinitiative.com/advisories/ZDI-11-156/).

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Gain a shell remotely

Nessus Plugin ID: 54618 ()

Bugtraq ID: 47775

CVE ID: