RSI.0001.05-01-98.ALL.QUAKE_SERVER |:::. |::::: |::::. |::::: |::::: |::::. .. :: .. .. :: .. .. .. :: |:::: |:::: |:::: :::::: |::::: |:::: |: |: :: |: |: |:: |: |: :: |: :: |::::: |: |::::: |::::: |::::: Repent Security Incorporated, RSI [ http://www.repsec.com ] *** RSI ALERT ADVISORY *** --- [CREDIT] -------------------------------------------------------------- Vulnerability found by: Mark Zielinski Author: Mark Zielinski --- [SUMMARY] ------------------------------------------------------------- Announced: May 1st, 1998 Report code: RSI.0001.05-01-98.ALL.QUAKE_SERVER Report title: Vulnerability in the Quake server Vulnerability: RCON (Remote Console) Patch status: None currently available Platforms: Quake 1/2, QuakeWorld, Linux/Solaris Quake2 Reference: http://www.repsec.com/advisories.html Impact: If exploited, an attacker could remotely compromise administrator access on your Quake server. --- [DETAILS] ------------------------------------------------------------- Problem: The Quake server has a feature where it allows administrators to remotely send commands to the Quake console with a password. However, it is possible to remotely bypass authentication. In order for this to be exploited, the attacker would have to create a handcrafted udp packet with a header containing the rcon command and the password "tms" with a source IP coming from ID Software's Subnet. (192.246.40) The Quake server does not require an open connection for sending the rcon packet. When this is exploited, no logs are reported of the rcon command being used. This vulnerability is present in Quake 1, QuakeWorld, Quake 2, Quake 2 Linux and Quake 2 Solaris, all versions. --- [FIX] ----------------------------------------------------------------- Solution: Filter all incoming packets from the subnet 192.246.40. --- [PATCH] --------------------------------------------------------------- Solution: No patches are currently available. --------------------------------------------------------------------------- Repent Security Incorporated (RSI) advise@repsec.com 13610 N. Scottsdale Rd. Suite #10-326 Scottsdale, AZ 85254 [ http://www.repsec.com ] --------------------------------------------------------------------------- -----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.2 mQCNAzU6dqAAAAEEAOHt9a5vevjD8ZjsEmncEbFp2U7aeqvPTcF/8FJMilgOVp75 dshXvZixHsYU7flgCNzA7wLIQPWBQBrweLG6dx9gE9e5Ca6yAJxZg8wNsi06tZfP nvmvf6F/7xoWS5Ei4k3YKuzscxlyePNNKws6uUe2ZmwVoB+i3HHT44dOafMhAAUT tBpSZXBTZWMgPGFkdmlzZUByZXBzZWMuY29tPg== =ro8H -----END PGP PUBLIC KEY BLOCK----- Copyright April 1998 RepSec, Inc. The information in this document is provided as a service to customers of RepSec, Inc. Neither RepSec, Inc., nor any of it's employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process contained herein, or represents that its use would not infringe any privately owned rights. Reference herein to any specific commercial products, process, or services by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by RepSec, Inc. The views and opinions of authors express herein do no necessarily state or reflect those of RepSec, Inc., and may not be used for advertising or product endorsement purposes. The material in this alert advisory may be reproduced and distributed, without permission, in whole or in part, by other security incident response teams (both commercial and non-commercial), provided the above copyright is kept intact and due credit is given to RepSec, Inc. This alert advisory may be reproduced and distributed, without permission, in its entirety only, by any person provided such reproduction and/or distribution is performed for non-commercial purposes and with the intent of increasing the awareness of the Internet community. --------------------------------------------------------------------------- RepSec, Inc. are trademarks of RepSec, Inc. All other trademarks are property of their respective holders.