NodeManager SNMP Buffer Overflow Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID: 1012915|
SecurityTracker URL: http://securitytracker.com/id/1012915
(Links to External Site)
Date: Jan 17 2005
Execution of arbitrary code via network, User access via network|
Fix Available: Yes Vendor Confirmed: Yes |
Tan Chew Keong of SIG^2 Vulnerability Research reported a buffer overflow vulnerability in NodeManager. A remote user can execute arbitrary code on the target system.|
A remote user can send a specially crafted SNMPv1 trap to trigger the buffer overflow and execute arbitrary code. For example, a remote user can send a LinkDown-Trap packet with an OCTET-STRING containing more than 512 bytes in the Trap variable-bindings field to trigger the stack overflow and overwrite the EIP register.
The vendor was notified on December 21, 2004.
The original advisory is available at:
A remote user can execute arbitrary code on the target system.|
The vendor has released a fixed version (2.01), available at:|
Vendor URL: www.h4.dion.ne.jp/~you4707/NodeManagerPro.html (Links to External Site)
|Underlying OS: Windows (2000), Windows (XP)|
Source Message Contents
Subject: [SIG^2 G-TEC] NodeManager Professional V2.00 Buffer Overflow Vulnerability|
SIG^2 Vulnerability Research Advisory
NodeManager Professional V2.00 Buffer Overflow Vulnerability
by Tan Chew Keong
Release Date: 17 Jan 2005
(http://www.h4.dion.ne.jp/~you4707/NodeManagerPro.html) is a network
management and monitoring tool. It receives SNMPv1 traps and displays
them on screen and writes them to a log file. NodeManager Professional
V2.00 has a stack overflow vulnerability that can be exploited by
sending a specially crafted SNMPv1 trap.
NodeManager Professional V2.00 on English Win2K SP4, WinXP SP1, SP2.
NodeManager Professional allows the user to use a format string to
customize how each received SNMPv1 trap is logged. For example, the
default format string for the LinkDown event is
"Snmp Trap LinkDown (EnterPrise=%EPRISE ObjectID=%OID Value=%DATA)"
When a LinkDown-Trap packet is received, the various placeholders (e.g.
%OID, %DATA) will be replaced with the received values. When the format
string is parsed, each received value is first copied to a 512-byte
local stack buffer before it is concatenated to the final string. By
sending a LinkDown-Trap packet containing an OCTET-STRING of more than
512 bytes in the Trap variable-bindings field, it is possible to
overflow the stack buffer and overwrite the EIP. This happens when the
%DATA placeholder is processed.
Upgrade to version 2.01, which fixes this vulnerability.
20 Dec 04 - Vulnerability Discovered
21 Dec 04 - Initial Author Notification
22 Dec 04 - Received Author's Reply
07 Jan 05 - Second Author Notification
11 Jan 05 - Second Author Reply
15 Jan 05 - Author Released Fixed Version
17 Jan 05 - Public Release
All guys at SIG^2 G-TEC Lab
"IT Security...the Gathering. By enthusiasts for enthusiasts."