Cisco Small Business RV Series Routers Link Layer Discovery Protocol Multiple Vulnerabilities (cisco-sa-rv-multi-lldp-u7e4chCe)

high Nessus Plugin ID 153257

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Small Business RV Series Routers Link Layer Discovery Protocol is affected by multiple vulnerabilities.

- Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. (CVE-2021-1309)

- Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. (CVE-2021-1251)

- Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. (CVE-2021-1308)

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvw62392, CSCvw62395, CSCvw62410, CSCvw62411, CSCvw62413, CSCvw62416, CSCvw62417, CSCvw62418, CSCvw94339, CSCvw94341, CSCvw95016, CSCvw95017, CSCvy01220

Plugin Details

Severity: High

ID: 153257

File Name: cisco-sa-rv-multi-lldp-u7e4chCe.nasl

Version: 1.9

Type: remote

Family: CISCO

Published: 9/14/2021

Updated: 3/8/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2021-1309

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: x-cpe:/o:cisco:small_business_rv_series_router_firmware

Required KB Items: Cisco/Small_Business_Router/Version, Cisco/Small_Business_Router/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 4/7/2021

Vulnerability Publication Date: 4/7/2021

Reference Information

CVE: CVE-2021-1251, CVE-2021-1308, CVE-2021-1309

CWE: 119, 130, 400

CISCO-SA: cisco-sa-rv-multi-lldp-u7e4chCe

IAVA: 2021-A-0161-S

CISCO-BUG-ID: CSCvw62392, CSCvw62395, CSCvw62410, CSCvw62411, CSCvw62413, CSCvw62416, CSCvw62417, CSCvw62418, CSCvw94339, CSCvw94341, CSCvw95016, CSCvw95017, CSCvy01220

Detections

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