Detections
Analytics

Cisco IOS Software Multiple DoS Vulnerabilities (cisco-sa-20180328-slogin)

medium Nessus Plugin ID 131951

Language:

Synopsis

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

Description

According to its self-reported version, Cisco IOS Software is affected by two denial of service (DoS) vulnerabilities the Login Enhancements (Login Block) feature due to an attempt to free an area of memory that has not been previously allocated. An unauthenticated, remote attacker can trigger a reload of an affected device, resulting in a DoS condition as follows:

 - By attempting to log in to an affected device via Secure Shell (SSH) or Telnet with invalid credentials multiple times. (CVE-2018-0179)

 - By attempting to log in to an affected device via Secure Shell (SSH) or Telnet with invalid credentials multiple times while the administrator modifies the 'login block-for' configuration. (CVE-2018-0180)

Please see the included Cisco BIDs 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(s) CSCuy32360 and CSCuz60599.

See Also

http://www.nessus.org/u?9aa14dc5

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuy32360

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuz60599

Plugin Details

Severity: Medium

ID: 131951

File Name: cisco-sa-20180328-slogin.nasl

Version: 1.17

Type: combined

Family: CISCO

Published: 12/11/2019

Updated: 4/25/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-0180

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Settings/ParanoidReport, Host/Cisco/IOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/28/2018

Vulnerability Publication Date: 3/28/2018

CISA Known Exploited Vulnerability Due Dates: 3/17/2022

Reference Information

CVE: CVE-2018-0179, CVE-2018-0180

BID: 103556