Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2015-6418

Severity CVSS v4.0:
Pending analysis
Type:
CWE-200 Information Leak / Disclosure
Publication date:
13/12/2015
Last modified:
12/04/2025

Description

The random-number generator on Cisco Small Business RV routers 4.x and SA500 security appliances 2.2.07 does not have sufficient entropy, which makes it easier for remote attackers to determine a TLS key pair via unspecified computations upon handshake key-exchange data, aka Bug ID CSCus15224.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:sa520:2.2.07:*:*:*:*:*:*:*
cpe:2.3:o:cisco:sa520w:2.2.07:*:*:*:*:*:*:*
cpe:2.3:o:cisco:sa540:2.2.07:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv016_multi-wan_vpn_firmware:4.0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv016_multi-wan_vpn_firmware:4.0.2.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv016_multi-wan_vpn_firmware:4.0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv042_dual_wan_vpn_router_firmware:4.0.2.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv042g_dual_gigabit_wan_vpn_firmware:4.0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv042g_dual_gigabit_wan_vpn_firmware:4.2.2.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv042g_dual_gigabit_wan_vpn_firmware:4.2.2.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv082_dual_wan_vpn_router_firmware:4.0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:rv082_dual_wan_vpn_router_firmware:4.0.2.8:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools