Sid 1-46495

Message

SERVER-OTHER HTTP request smuggling attempt

Summary

This event is generated when an Apache HTTP Smuggling formatted request is detected

Impact

Misc Attack

CVE-2015-3183:

CVSS base score 5.0

CVSS impact score 2.9

CVSS exploitability score 10.0

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Detailed information

CVE-2015-3183: The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

Affected systems

• apache http_server 2.4.13

Ease of attack

CVE-2015-3183:

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

False positives

False negatives

Corrective action

Contributors

• Cisco's Talos Intelligence Group

Additional References