Detections
Analytics

Cisco Content Security Management Appliance TCP Flood DoS (CSCus79777)

high Nessus Plugin ID 86915

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Synopsis

The remote security appliance is missing a vendor-supplied patch.

Description

According to its self-reported version, the Cisco Content Security Management Appliance (SMA) running on the remote host is affected by a denial of service vulnerability in the network stack of Cisco AsynOS due to improper handling of TCP packets sent at a high rate. An unauthenticated, remote attacker can exploit this to exhaust all available memory, preventing any more TCP connections from being accepted.

Solution

Apply the relevant updates referenced in Cisco Security Advisory cisco-sa-20151104-aos.

See Also

http://www.nessus.org/u?561dad7b

Plugin Details

Severity: High

ID: 86915

File Name: cisco-sa-20151104-aos_sma.nasl

Version: 1.7

Type: local

Family: CISCO

Published: 11/18/2015

Updated: 2/28/2020

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2015-6321

Vulnerability Information

CPE: cpe:/h:cisco:content_security_management_appliance

Required KB Items: Host/AsyncOS/Cisco Content Security Management Appliance/DisplayVersion, Host/AsyncOS/Cisco Content Security Management Appliance/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2015

Vulnerability Publication Date: 11/4/2015

Reference Information

CVE: CVE-2015-6321

CISCO-SA: cisco-sa-20151104-aos

CISCO-BUG-ID: CSCus79777