9991 : Apache HTTP Server ap_resolve_env Environment Variable Local Overflow
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Info

Last Modified
8 months ago

Percent Complete
100%

Disclosure
Sep 15, 2004

Discovery
Unknown

Dates

Exploit
Unknown

Solution
Unknown

Description

 Apache HTTP Server and IBM HTTP Server contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when function ap_resolve_env() in server/util.c expands environment variable constructs from configuration files such as .htaccess or httpd.conf. For an attacker to exploit the flaw they would need to carefully craft malicious configuration files and have write access to the legitimate copies. This flaw may lead to a loss of confidentiality.

Classification

 Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Confidentiality
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

 Upgrade to version 2.0.51 or higher or apply the patch from IBM, as it has been reported to fix this vulnerability.

Products
Apache Software Foundation
Watch-list
HTTP Server
Watch-list
 2.0.40
2.0.42
2.0.43
2.0.44
2.0.45
2.0.46
2.0.47
2.0.35
2.0.36
2.0.37
2.0.39
2.0.48
2.0.49
2.0.50
International Business Machines Corporation
Watch-list
HTTP Server
Watch-list
 2.0.47
2.0.47.1
2.0.42.2
Hewlett-Packard Development Company, L.P.
Watch-list
Secure Web Server (SWS)
Watch-list
 6.3

References

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Nessus

 14731 14736 14748 14752 14766 14807 15898

Credit
  • Ulf Härnhammar - Swedish IT Incident Centre

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