Apache stops writing access/error logs after processing "Request-URI" containing "0x1A" characters

Overview

A vulnerability in the logging of URI requests may permit a remote attacker to disable logging on an Apache HTTP Server. Version 1.3.27 on Windows systems is reported vulnerable to this issue.

Description

Apache HTTP Server 1.3.27 running on Win32 systems contains a vulnerability that could enable an attacker to stop the logging process. If the server is configured to use rotatelogs then an attacker can stop logging on the server by sending a crafted URI Request.

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Impact

Logging on the web server will be disabled. This can be used to mask future attacks against the server.

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Solution

Upgrade to Apache 1.3.28 to resolve this issue.

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Disable the rotatelogs utility on CustomLog or ErrorLog directives.

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Vendor Information

694428

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Apache Affected

Updated: July 21, 2003

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%23694428 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

<http://www.apache.org/dist/httpd/CHANGES_1.3&gt;

Acknowledgements

Thanks to Hitachi Incident Response Team for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

CVE IDs:	CVE-2003-0460
Severity Metric:	2.48 Date Public: