PT-2015-2347 · Cisco · Cisco Ios

Published 2015-10-05 · Updated 2017-01-04 · CVE-2015-6263

Positive Technologies (AI Summary)

CVSS v2.0

6.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS versions 15.4(3)M2.2 and earlier

Description The issue is related to the RADIUS client implementation in Cisco IOS, which is affected by resource management errors. This can be exploited by a remote attacker using specially crafted RADIUS protocol messages, potentially leading to a denial of service (device reload). The vulnerability is due to improper parsing of malformed RADIUS packets returned by a RADIUS server. An attacker could exploit this by configuring a RADIUS server with a shared RADIUS secret and returning malformed answers to a RADIUS client on an affected Cisco device.

Recommendations For Cisco IOS version 15.4(3)M2.2, update to a newer version that includes the fix for this issue. At the moment, there is no information about additional mitigation measures for other affected versions.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2015-11712

CVE-2015-6263

Affected Products

Cisco Ios

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2015-6263 · Security Note
• https://bdu.fstec.ru/vul/2015-11712 · Security Note
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151005-ios-radius · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151005-ios-radius · Vendor Advisory
• http://securitytracker.com/id/1033747 · Note