Cisco IOS Software Hot Standby Router Protocol Information Leak Vulnerability

medium Nessus Plugin ID 123792

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS Software is affected by following vulnerability

- A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device.The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device. (CVE-2019-1761)

Please see the included Cisco BIDs and Cisco Security Advisory for more information

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvj98575

See Also

http://www.nessus.org/u?46d52b7a

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj98575

Plugin Details

Severity: Medium

ID: 123792

File Name: cisco-sa-20190327-ios-infoleak.nasl

Version: 1.16

Type: combined

Family: CISCO

Published: 4/5/2019

Updated: 4/27/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2019-1761

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe, cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2019

Vulnerability Publication Date: 3/28/2019

Reference Information

CVE: CVE-2019-1761

CWE: 665

CISCO-SA: cisco-sa-20190327-ios-infoleak

IAVA: 2019-A-0097-S

CISCO-BUG-ID: CSCvj98575