Cisco IOS XE Software HTTP Server DoS (cisco-sa-20190925-httpserv-dos)

high Nessus Plugin ID 129591

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE Software is affected by a vulnerability in the HTTP server code.
This is due to a logical error in the HTTP server logging mechanism. An unauthenticated, remote attacker can exploit this by generating a large amount of long-lived connections to the HTTP service on the device, causing the HTTP server to crash.

Please see the included Cisco BID and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvn75597

See Also

http://www.nessus.org/u?460abc42

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn75597

Plugin Details

Severity: High

ID: 129591

File Name: cisco-sa-20190925-httpserv-dos.nasl

Version: 1.11

Type: combined

Family: CISCO

Published: 10/7/2019

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-12659

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2019

Vulnerability Publication Date: 9/25/2019

Reference Information

CVE: CVE-2019-12659

CWE: 399

CISCO-SA: cisco-sa-20190925-httpserv-dos

IAVA: 2019-A-0352-S

CISCO-BUG-ID: CSCvn75597