20439 : Apache Tomcat Directory Listing Saturation DoS
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Info

Last Modified
about 1 year ago

Percent Complete
100%

Disclosure
Nov 03, 2005

Discovery
Unknown

Dates

Exploit
Nov 03, 2005

Solution
Unknown

Description

 Apache Tomcat contains a flaw that may allow a remote denial of service. The issue is triggered when an attacker makes multiple concurrent requests for a directory listing that contain a large number of files. With a large number of requests, an attacker can cause the server to stop processing subsequent requests.

Classification

 Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Public
OSVDB: Web Related

Technical

 Successful exploitation requires that directory listing is enabled in a directory with a large number of files.

Solution

 Upgrade to version 5.5.12 or higher, as it has been reported to partially fix this vulnerability by allowing operations to resume after a few minutes. It is also possible to correct the flaw by implementing the following workaround(s):
-Disable directory listing for web directories that has a large number of files.

Products
Apache Software Foundation
Watch-list
Apache Tomcat
Watch-list
 5.5.11
5.5.12

References

Credit
  • David Maciejak - david.maciejakgmail.com -

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2005-11-07 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_1

Blogs

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