Advisory Details

July 26th, 2013

Cogent Datahub Stack Buffer Overflow Remote Code Execution Vulnerability

CVE ID
CVSS SCORE	10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Cogent Real-Time Systems
AFFECTED PRODUCTS	Cogent Datahub
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cogent Datahub. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web server component's handling of HTTP headers. By sending an overlarge HTTP header, an attacker can overflow a fixed size stack buffer. This vulnerability allows for an attacker to execute arbitrary code in the context of the Datahub process.
ADDITIONAL DETAILS	Cogent Real-Time Systems has issued an update to correct this vulnerability. More details can be found at: http://www.cogentdatahub.com/Info/130712_ZDI-CAN-1915_Response.html
DISCLOSURE TIMELINE	2013-06-25 - Vulnerability reported to vendor 2013-07-26 - Coordinated public release of advisory
CREDIT	Andrea Micalizzi aka rgod

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