N/A - cisco-sa-20150309-rowhammer

Executive Summary

Summary
Title	Row Hammer Privilege Escalation Vulnerability

Informations
Name	cisco-sa-20150309-rowhammer	First vendor Publication	2015-03-09
Vendor	Cisco	Last vendor Modification	2015-03-09
Severity (Vendor)	N/A	Revision	1.1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score	Not Defined	Attack Range	Not Defined
Cvss Impact Score	Not Defined	Attack Complexity	Not Defined
Cvss Expoit Score	Not Defined	Authentication	Not Defined
Calculate full CVSS 2.0 Vectors scores

Detail

On March 9, 2015, new research was published that takes advantage of a flaw in double data rate type 3 (DDR3) synchronous dynamic random-access memory (SDRAM) to perform privilege escalation attacks on systems that contain the affected hardware. The flaw is known as Row Hammer. To attempt an attack, the attacker must execute a malicious binary on an affected system.

In addition, the research focused on consumer hardware that did not have a number of mitigations and memory protections that have been integrated into chipsets and memory modules used in Cisco server-class products. Of note in the paper is that the researchers were unable, in their testing, to exploit devices that use Error-Correcting Code (ECC) memory.

Cisco offers a limited number of products that allow an unprivileged user to load and execute binaries.

The research report is at the following link: http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html

This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150309-rowhammer

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