PT-2014-3239 · Cisco · Cisco Nx-Os+1

Publicado

2014-01-06

·

Atualizado

2017-08-29

·

CVE-2013-6982

CVSS v2.0

4.3

Média

VetorAV:N/AC:M/Au:N/C:N/I:N/A:P
Name of the Vulnerable Software and Affected Versions Cisco NX-OS versions 6.2(2a) and earlier
Description The issue is related to the BGP implementation, which does not properly handle the interaction of UPDATE messages with IPv6, VPNv4, and VPNv6 labeled unicast-address families. This allows remote attackers to cause a denial of service (peer reset) via a crafted message. The vulnerability is due to the improper processing of specifically crafted BGP update messages. An attacker could exploit this by crafting a specific BGP-labeled update message, potentially resetting all BGP peers on a Cisco NX-OS device configured with either a VPNv4, VPNv6, or IPv6 labeled unicast address family. The exploit likely requires access to trusted, internal networks to send crafted BGP update messages to the targeted device.
Recommendations For Cisco NX-OS versions 6.2(2a) and earlier, update to a newer version that includes the fix for this issue, as indicated by Cisco in their security notice. As a temporary workaround, consider restricting access to the BGP functionality to minimize the risk of exploitation.

Correção

DoS

RCE

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Enumeração de Fraquezas

CWE-20

Identificadores relacionados

CVE-2013-6982

Produtos afetados

Cisco Nx-Os
Cisco Nexus