Rule

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Sid
20580

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in http server.

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Impact:
Denial of Service. Information disclosure. Loss of integrity. 

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Detailed Information:
The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an initial @ (at sign) character.

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Affected Systems:
apache http server 1.3
apache http server 1.3.0
apache http server 1.3.1
apache http server 1.3.1.1
apache http server 1.3.10
apache http server 1.3.11
apache http server 1.3.12
apache http server 1.3.13
apache http server 1.3.14
apache http server 1.3.15
apache http server 1.3.16
apache http server 1.3.17
apache http server 1.3.18
apache http server 1.3.19
apache http server 1.3.2
apache http server 1.3.20
apache http server 1.3.22
apache http server 1.3.23
apache http server 1.3.24
apache http server 1.3.25
apache http server 1.3.26
apache http server 1.3.27
apache http server 1.3.28
apache http server 1.3.29
apache http server 1.3.3
apache http server 1.3.30
apache http server 1.3.31
apache http server 1.3.32
apache http server 1.3.33
apache http server 1.3.34
apache http server 1.3.35
apache http server 1.3.36
apache http server 1.3.37
apache http server 1.3.38
apache http server 1.3.39
apache http server 1.3.4
apache http server 1.3.41
apache http server 1.3.42
apache http server 1.3.5
apache http server 1.3.6
apache http server 1.3.65
apache http server 1.3.68
apache http server 1.3.7
apache http server 1.3.8
apache http server 1.3.9
apache http server 2.0
apache http server 2.0.28
apache http server 2.0.32
apache http server 2.0.34
apache http server 2.0.35
apache http server 2.0.36
apache http server 2.0.37
apache http server 2.0.38
apache http server 2.0.39
apache http server 2.0.40
apache http server 2.0.41
apache http server 2.0.42
apache http server 2.0.43
apache http server 2.0.44
apache http server 2.0.45
apache http server 2.0.46
apache http server 2.0.47
apache http server 2.0.48
apache http server 2.0.49
apache http server 2.0.50
apache http server 2.0.51
apache http server 2.0.52
apache http server 2.0.53
apache http server 2.0.54
apache http server 2.0.55
apache http server 2.0.56
apache http server 2.0.57
apache http server 2.0.58
apache http server 2.0.59
apache http server 2.0.60
apache http server 2.0.61
apache http server 2.0.63
apache http server 2.0.64
apache http server 2.0.9
apache http server 2.2.0
apache http server 2.2.1
apache http server 2.2.10
apache http server 2.2.11
apache http server 2.2.12
apache http server 2.2.13
apache http server 2.2.14
apache http server 2.2.15
apache http server 2.2.16
apache http server 2.2.18
apache http server 2.2.19
apache http server 2.2.2
apache http server 2.2.20
apache http server 2.2.21
apache http server 2.2.3
apache http server 2.2.4
apache http server 2.2.6
apache http server 2.2.8
apache http server 2.2.9

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Attack Scenarios:
In an SQL injection attack, the attacker is able to coerce the application into running SQL queries of the attackers choosing. This can lead to a complete compromise of the data stored in the system as well as the attacker being able to gain administrative access to the application.

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Ease of Attack:
Medium.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

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Additional References:

NIST CVE-2011-3368:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-3368
 
Common Weakness Enumeration:
http://cwe.mitre.org/data/definitions/89.html
 
Common Attack Pattern Enumeration and Classification:
http://capec.mitre.org/data/definitions/66.html

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