Advisory Details

September 8th, 2015

Cogent DataHub Gamma Command Injection Remote Code Execution Vulnerability

CVE ID	CVE-2014-3789
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
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 EvalExpresssion method, which is available remotely through the AJAX facility. Using this method, it is possible to execute arbitrary Gamma code. By supplying a specially formatted Gamma script, a remote attacker can execute arbitrary OS commands 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: https://ics-cert.us-cert.gov/advisories/ICSA-15-246-01
DISCLOSURE TIMELINE	2015-06-02 - Vulnerability reported to vendor 2015-09-08 - Coordinated public release of advisory
CREDIT	Anonymous

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