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Apache Logging Denial of Service and local Denial of Service
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Secunia Advisory:
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SA9315
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Release Date:
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2003-07-21
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Last Update:
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2003-10-29
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Popularity:
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9,737 views
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Critical:
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Less critical
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Impact:
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Security Bypass
DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apache 1.3.x
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| CVE reference: | CVE-2003-0460
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Description:
Three vulnerabilities have been identified in Apache 1.3, one allows malicious people to cause Apache to stop logging requests.
1) Apache fails to handle "0x1A" characters when configured to use "rotatelogs". This could be exploited to cause Apache to stop logging requests to access and error logs, this could hide other malicious activity.
This has only been reported to affect Apache 1.3.27 on Microsoft Windows and IBM OS/2 platforms which has been configured to pipe log information to "rotatelogs".
2) A potential Denial of Service condition exists because the server could enter an infinite loop due to internal redirects. The problem is that a malicious type-map file may cause an infinite number of redirections, causing the server to consume all available CPU resources.
3) Several file descriptors are leaked to child processes such as CGI scripts. This is an older issue which previously has been fixed in the Apache 2.0 branch. See:
http://secunia.com/advisories/8499/
Solution:
Apache 1.3.28 has been released:
http://httpd.apache.org/
Provided and/or discovered by:
Hitachi Incident Response Team (reported the logging issue)
Original Advisory:
http://www.apache.org/dist/httpd/Announcement.html
Other References:
http://www.kb.cert.org/vuls/id/694428
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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