BugTraq
TPTI-07-12: Multiple Vendor Progress Server Heap Overflow Vulnerability Jul 13 2007 12:54AM
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TPTI-07-12: Multiple Vendor Progress Server Heap Overflow Vulnerability

http://dvlabs.tippingpoint.com/advisory/TPTI-07-12.html

July 12, 2007

-- CVE ID:

CVE-2007-2417

-- Affected Vendor:

Progress Software

-- Affected Products:

RSA Authentication Manager

Progress Database

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability since May 22, 2007 by Digital Vaccine protection

filter ID 5326. For further product information on the TippingPoint IPS:

http://www.tippingpoint.com

-- Vulnerability Details:

This vulnerability allows attackers to execute arbitrary code on

vulnerable installations of RSA Authentication Manager and other

products that include the Progress server. User interaction is not

required to exploit this vulnerability.

The specific flaw exists in the Progress Server listening by default on

TCP ports 5520 and 5530. The _mprosrv.exe process trusts a user-supplied

DWORD size and attempts to receive that amount of data into a statically

allocated heap buffer.

The user-supplied size parameter is used directly as an argument to

recv() as shown below:

_mprosrv.exe:

0044F24F mov eax, [esp+42Ch+buf] ; 1012 byte heap buffer

0044F253 push 0 ; flags

0044F255 push esi ; attacker-controlled size

0044F256 push eax ; 1012 byte heap buffer

0044F257 push edi ; s

0044F258 call recv

The heap buffer which is received into is 1012 bytes. Sending more than

1012 bytes will overflow into subsequent heap chunks. This heap

corruption can be leveraged by an attacker to execute arbitrary code in

the context of the SYSTEM user.

-- Vendor Response:

RSA has made hot fixes available to registered users through RSA

Customer Support. For more information, please visit the RSA website

for the appropriate product:

For RSA ACE/Server 5.2, apply the following hot fix on top of Patch 1:

https://knowledge.rsasecurity.com/dlcpages/rsa_securid/securid_dlc_as52p
.asp

For RSA Authentication Manager 6.0, apply the following hot fix on top

of the Patch 2 - (scroll down to the second half of the page)

https://knowledge.rsasecurity.com/dlcpages/rsa_securid/securid_dlc_am60p
2.asp

For RSA SecurID Appliance 2.0, apply the following hot fix on top of

the Upgrade 2.0.1:

https://knowledge.rsasecurity.com/dlcpages/rsa_securid/securid_dlc_app.a
sp

For RSA Authentication Manager 6.1, apply the 6.1.2 patch:

https://knowledge.rsasecurity.com/dlcpages/rsa_securid/securid_dlc_am60p
2.asp

RSA recommends that all customers using RSA ACE/Server 5.2, RSA

Authentication Manager 6.0 and 6.1, and RSA SecurID Appliance 2.0

install the hot fixes. RSA states "Notification was recently (June 28,

2007) sent to RSA SecurCare customers about the vulnerability and the

correct way to resolve it.

-- Disclosure Timeline:

2007.03.14 - Vulnerability reported to vendor

2007.05.22 - Digital Vaccine released to TippingPoint customers

2007.07.12 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by Aaron Portnoy, TippingPoint DVLabs.

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