RSI.0003.05-15-98.HP-UX.RWRITE |:::. |::::: |::::. |::::: |::::: |::::. .. :: .. .. :: .. .. .. :: |:::: |:::: |:::: :::::: |::::: |:::: |: |: :: |: |: |:: |: |: :: |: :: |::::: |: |::::: |::::: |::::: Repent Security Incorporated, RSI [ http://www.repsec.com ] *** RSI ALERT ADVISORY *** --- [CREDIT] -------------------------------------------------------------- 'Bwana Brian': Research and development Mark Zielinski: Author of advisory --- [SUMMARY] ------------------------------------------------------------- Announced: May 15, 1998 Report code: RSI.0003.05-15-98.HP-UX.RWRITE Report title: HP-UX rwrite/rlpdaemon Vulnerability: Remote users can send commands to your terminal via escape sequences sent to the rlpdaemon Vendor status: Sun, 31 May 1998 Patch status: No patch currently available Platforms: HP-UX 9.X, 10.X Vulnerable: Systems running rlpdaemon where users use hpterm Reference: http://www.repsec.com/advisories.html Impact: If exploited, an attacker could remotely compromise an account on your system, including root --- [DETAILS] ------------------------------------------------------------- Problem: If a user has an hpterm session logged in to an HP-UX that is running rlpdaemon, it is possible for an attacker to remotely compromise the active account. By sending carefully selected packets to the rlpdaemon, an attacker can force a user's terminal to display a message that contains escape sequences with embedded commands that reprogram the soft-keys of the hpterm, allowing for arbitrary playback and key remapping. The user does not need to have 'mesg y' on for this to happen. This problem is present in any HP-UX running the current version of rlpdaemon. --- [FIX] ----------------------------------------------------------------- Solution: Disable rlpdaemon until Hewlett-Packard can provide a patch. --- [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. RSI Member Alert Advisories are expressly prohibited from release of any and all information contained in this advisory, in any and all forms into the public domain by RepSec Members, their personnel, or other related or affiliated personnel, to other advisory groups and/or other security incident response teams (both commercial and non-commercial) - during the period RSI Member Alert Advisories are released to RSI Member's only. The material in this advisory alert may be reproduced and distributed, without permission, only after it has been released by RepSec, Inc. into the public domain. After release by RepSec, Inc. into the public domain the material in this RSI Member Alert Advisory may be reproduced and distributed, without permission in its entirety only, provided the copyright is kept intact and due credit is given to RepSec, Inc. Subject to the timing of release restrictions above, this RSI Advisory Alert 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.