Vulnerability Note VU#694428

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

Original Release date: 21 Jul 2003 | Last revised: 21 Jul 2003


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.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
ApacheAffected-21 Jul 2003
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

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



Thanks to Hitachi Incident Response Team for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

  • CVE IDs: CAN-2003-0460
  • Date Public: 21 Jul 2003
  • Date First Published: 21 Jul 2003
  • Date Last Updated: 21 Jul 2003
  • Severity Metric: 2.47
  • Document Revision: 7


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