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

Vulnerability Note VU#694428

Original Release Date: 2003-07-21 | Last Revised: 2003-07-21


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.


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.


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


Upgrade to Apache 1.3.28 to resolve this issue.

Disable the rotatelogs utility on CustomLog or ErrorLog directives.

Vendor Information

Affected   Unknown   Unaffected


Updated:  July 21, 2003



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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


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.

CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



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: 2003-07-21
Date First Published: 2003-07-21
Date Last Updated: 2003-07-21 14:49 UTC
Document Revision: 7

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