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Info |
Last Modified |
| 10 months ago |
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Description |
Dragon Sensor contains a flaw that may allow a malicious user to craft HTTP-based attacks that evade detection. The issue is triggered when %u encoding is used to obfuscate HTTP URLs used in attacks. It is possible that the flaw may allow HTTP-based attacks to not be detected by the IDS.
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Classification |
Location:
Remote/Network Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
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Technical |
IIS supports %u encoding in order to encode Unicode characters in HTTP URLs. The format is %u followed by four hexadecimal digits. The four hexadecimal digits represent the Unicode character being encoded. For example, %u0061 would represent the Unicode character 'a'.
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Solution |
Upgrade to version 5.0 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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Products |
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Dragon Fire IDS
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4.x |
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Credit |
- Marc Maiffret - marc
 eeye.com - eEye Digital Security
- HSJ -
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BlogsProvided by Technorati
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None found at this time
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