PT-2015-7242 · Cisco · Cisco Small Business Rv Routers+1

Published 2015-12-13 · Updated 2016-12-07 · CVE-2015-6418

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Cisco Small Business RV routers versions 4.x Cisco SA500 security appliances version 2.2.07

Description The issue is related to the random-number generator, which lacks sufficient entropy. This makes it easier for remote attackers to determine a TLS key pair via unspecified computations upon handshake key-exchange data.

Recommendations For Cisco Small Business RV routers versions 4.x, update to a version with sufficient entropy in the random-number generator. For Cisco SA500 security appliances version 2.2.07, update to a version with sufficient entropy in the random-number generator. As a temporary workaround, consider restricting access to the TLS key-exchange data to minimize the risk of exploitation.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2015-6418

Affected Products

Cisco Sa500 Security Appliances

Cisco Small Business Rv Routers

References · 5

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151210-dwvr · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-6418 · Security Note
• http://securitytracker.com/id/1034408 · Note
• http://securitytracker.com/id/1034409 · Note
• http://securityfocus.com/bid/78876 · Note