PT-2013-5565 · Cisco · Cisco Ios

Published 2013-09-25 · Updated 2013-10-07 · CVE-2013-5477

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco IOS versions 12.2, 15.0 through 15.3

Description A vulnerability in the T1/E1 driver queue implementation could allow an unauthenticated, remote attacker to cause an interface wedge condition, leading to loss of connectivity and routing protocol adjacency, resulting in a denial of service scenario. This issue is due to the incorrect implementation of the T1/E1 driver queue. An attacker could exploit this by sending bursty traffic through the affected interface driver, potentially causing repeated exploitation to result in a denial of service condition.

Recommendations For Cisco IOS versions 12.2, 15.0 through 15.3, update to a fixed software version to address this vulnerability. As a temporary workaround, consider implementing workarounds to mitigate this vulnerability, such as restricting bursty network traffic to minimize the risk of exploitation.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2013-5477

Affected Products

Cisco Ios

References · 3

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-wedge · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-5477 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-wedge · Vendor Advisory