HP-UX vulnerable to buffer overflow in line printer daemon (rlpdaemon) via crafted print request

Overview

The line printer daemon (rlpdaemon) on HP-UX systems enable various clients to share printers over a network. There exists a buffer overflow vulnerability in this daemon that permits remote execution of arbitrary commands with elevated privileges.

Description

A buffer overflow exists in HP-UX’s line printer daemon (rlpdaemon) that may allow an intruder to execute arbitrary code with superuser privilege on the target system. The rlpdaemon is installed by default and is active even if it is not being used. An intruder does not need any prior knowledge, or privileges on the target system in order to exploit this vulnerability.

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Impact

An intruder can execute arbitrary commands.

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Solution

Hewlett-Packard has released HPSBUX0108-163 to address this issue. Please see the vendor statement for instructions and patches.

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Vendor Information

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Hewlett Packard __ Affected

Updated: October 04, 2001

Status

Affected

Vendor Statement

---------------------------------------------------------------

HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00163,
Originally issued: 27 August '01
---------------------------------------------------------------

The information in the following Security Bulletin should be
acted upon as soon as possible. Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer’s failure to fully implement instructions in this
Security Bulletin as soon as possible.

---------------------------------------------------------------
PROBLEM: Buffer overflow in rlpdaemon

PLATFORM: HP9000 Series 700/800 running HP-UX releases 10.01,
10.10, 10.20, 11.00, and 11.11.

DAMAGE: Unauthorized access, increased privileges.

SOLUTION: Apply the appropriate patch:
10.01 PHCO_24697,
10.10 PHCO_24698,
10.20 PHCO_24699,
11.00 PHCO_24700,
11.11 PHCO_24701,
11.20 PHCO_24868.

MANUAL ACTIONS: None

AVAILABILITY: All patches are available now.
Common Vulnerabilities and Exposures (CVE) project
has assigned the name CAN-2001-0668 to this issue.
---------------------------------------------------------------
A. Background
A remotely exploitable buffer overflow in rlpdaemon has been
reported to HP.

B. Recommended solution
The problem can be fully rectified by application of one of
these patches to the appropriate HP-UX release:
10.01 PHCO_24697,
10.10 PHCO_24698,
10.20 PHCO_24699,
11.00 PHCO_24700,
11.11 PHCO_24701,
11.20 PHCO_24868.

NOTE: HP-UX 10.24 and 11.04 (VVOS) are not vulnerable.

C. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to get to the HP IT Resource Center page
at:

<http://itrc.hp.com>

Use the ‘Login’ tab at the left side of the screen to login
using your ID and password. Use your existing login or the
“Register” button at the left to create a login, in order to
gain access to many areas of the ITRC. Remember to save the
User ID assigned to you, and your password.

In the left most frame select “Maintenance and Support”.

Under the “Notifications” section (near the bottom of
the page), select “Support Information Digests”.

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the “Update
Subscriptions” button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

To -gain access- to the Security Patch Matrix, select
the link for “The Security Bulletins Archive”. (near the
bottom of the page) Once in the archive the third link is
to the current Security Patch Matrix. Updated daily, this
matrix categorizes security patches by platform/OS release,
and by bulletin topic. Security Patch Check completely
automates the process of reviewing the patch matrix for
11.XX systems.

For information on the Security Patch Check tool, see:
<http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/&gt;
displayProductInfo.pl?productNumber=B6834AA"

The security patch matrix is also available via anonymous
ftp:

ftp.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix

On the “Support Information Digest Main” page:
click on the “HP Security Bulletin Archive”.

D. To report new security vulnerabilities, send email to

[email protected]

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server, or by sending a message with a -subject- (not body)
of ‘get key’ (no quotes) to [email protected].

Permission is granted for copying and circulating this
Bulletin to Hewlett-Packard (HP) customers (or the Internet
community) for the purpose of alerting them to problems,
if and only if, the Bulletin is not edited or changed in
any way, is attributed to HP, and provided such reproduction
and/or distribution is performed for non-commercial purposes.

Any other use of this information is prohibited. HP is not
liable for any misuse of this information by any third party.

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Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Apple Not Affected

Notified: September 04, 2001 Updated: November 01, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Caldera Not Affected

Notified: September 04, 2001 Updated: October 31, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Cray Not Affected

Updated: November 01, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Engarde Not Affected

Updated: November 01, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

FreeBSD Not Affected

Updated: November 05, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Fujitsu Not Affected

Updated: October 31, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

IBM Not Affected

Updated: October 31, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Red Hat Not Affected

Updated: November 08, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Sun Not Affected

Updated: November 01, 2001

Status

Not Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

Compaq Computer Corporation __ Unknown

Updated: November 05, 2001

Status

Unknown

Vendor Statement

Compaq has not been able to reproduce the problems identified in this advisory for TRU64 UNIX. We will continue testing and address the LPD issues if a problem is discovered and provide patches as necessary.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23966075 Feedback>).

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CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.securityfocus.com/bid/3240&gt;
• <http://xforce.iss.net/alerts/advise93.php&gt;
• <http://itrc.hp.com>
• <http://www.ciac.org/ciac/bulletins/l-134.shtml&gt;

Acknowledgements

This vulnerability was discovered and researched by Chris Spencer of Internet Security Systems (ISS). The CERT/CC wishes to thank ISS for the information contained in their advisory.

This document was written by Jason Rafail.

Other Information

CVE IDs:	CVE-2001-0668
Severity Metric:	18.75 Date Public: