lpd hostname authentication bypassed with spoofed DNS

Overview

The line printer daemon enables various clients to share printers over a network. There exists a flaw in the authentication method in this daemon that permits remote access to the server.

Description

A vulnerability exists in the line printer daemon (lpd) shipped with the lpr package for several systems. The authentication method was not thorough enough. If a remote user was able to control their own DNS so that their IP address resolved to the hostname of the print server, access would be granted when it should not be.

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Impact

An Intruder can gain unauthorized access to the lpd server. In conjunction with another vulnerability (e.g. VU#39001), an intruder may be able to gain additional privileges.

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Solution

Apply the patches provided by your vendor.

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Vendor Information

30308

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Debian __ Affected

Updated: October 04, 2001

Status

Affected

Vendor Statement

<http://www.debian.org/security/2000/20000109&gt;

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%2330308 Feedback>).

IBM Affected

Updated: November 02, 2001

Status

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%2330308 Feedback>).

RedHat __ Affected

Updated: October 04, 2001

Status

Affected

Vendor Statement

<http://www.redhat.com/support/errata/RHSA2000002-01.6.0.html&gt;

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%2330308 Feedback>).

Apple Not Affected

Updated: November 09, 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%2330308 Feedback>).

Caldera Not Affected

Notified: September 04, 2001 Updated: November 07, 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%2330308 Feedback>).

FreeBSD Not Affected

Updated: November 07, 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%2330308 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%2330308 Feedback>).

Sun Not Affected

Updated: October 30, 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%2330308 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%2330308 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.atstake.com/research/advisories/2000/lpd_advisory.txt&gt;
• <http://www.redhat.com/support/errata/RHSA2000002-01.6.0.html&gt;
• <http://www.debian.org/security/2000/20000109&gt;

Acknowledgements

The CERT/CC would like to thank Red Hat and Debian for the information provided in their security advisories.

This document was written by Jason Rafail.

Other Information

CVE IDs:	CVE-2000-1208
Severity Metric:	7.88 Date Public: