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Security Bulletin: Vulnerability in RC4 stream cipher affects the IBM FlashSystem V840 (CVE-2015-2808)

Security Bulletin


Summary

The RC4 “Bar Mitzvah” Attack for SSL/TLS affects the IBM® FlashSystem™ V840.

Vulnerability Details

CVEID: CVE-2015-2808
DESCRIPTION: The RC4 algorithm, as used in the TLS protocol and SSL protocol, could allow a remote attacker to obtain sensitive information. An attacker could exploit this vulnerability to remotely expose account credentials without requiring an active man-in-the-middle session. Successful exploitation could allow an attacker to retrieve credit card data or other sensitive information. This vulnerability is commonly referred to as "Bar Mitzvah Attack".

CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/101851 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

FlashSystem V840 including machine type and models (MTMs) for all available code levels. MTMs affected include 9846-AE1, 9848-AE1, 9846-AC0, 9848-AC0, 9846-AC1, and 9848-AC1.

Remediation/Fixes

V840 MTMsVRMFAPARRemediation/First Fix
Storage nodes:
9846-AE1 &
9848-AE1

Control nodes: 9846-AC0,
9846-AC1,
9848-AC0,
9848-AC1
A code fix is now available, the VRMF of this code level is 1.3.0.2 (or later) for the storage enclosure nodes and 7.5.0.2 for the control nodes. N/ANo workarounds or mitigations, other than applying this code fix, are known for this vulnerability

1.3.0.2 is available @ IBM’s Fix Central : V840 fixes, download 1.3.0.2 or later*
7.5.0.2 is available @ IBM’s Fix Central: V840 fixes, download 7.5.0.2 or later*

* This vulnerability had been previously fixed on the FlashSystem V840’s control nodes, but was fixed in all code fixes release 7.4.0.4 or later, though upgrade to 7.5.0.2 or later is recommended because of other fixes in 7.5.0.2 which are not in 7.4.0.4. This vulnerability had also been previously fixed on the FlashSystem V840’s storage node, for other ports, but was reintroduced in the code level 1.2.1.4 on the port opened to allow REST API control. FlashSystem V840 storage nodes running code levels prior to 1.3.0.2, but at 1.2.1.4 or 1.2.1.7, only have this vulnerability on the port used exclusively by the REST API.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

None

Change History

31 August 2015 Original Version Published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
17 June 2018

UID

ssg1S1005377