Cisco IOS XR Software IPsec Packet Processor DoS (cisco-sa-iosxr-ipsec-dos-q8UPX6m)

medium Nessus Plugin ID 134451

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XR Software is affected by a denial of service (DoS) vulnerability in the IPsec packet processor due to improper handling of packets. An unauthenticated, remote attacker can exploit this, by sending malicious ICMP error messages to an affected device that get punted to the IPsec packet processor, in order to deplete IPsec memory and cause all future IPsec packets to be dropped.

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 CSCvr75998

Plugin Details

Severity: Medium

ID: 134451

File Name: cisco-sa-iosxr-ipsec-dos-q8UPX6m.nasl

Version: 1.10

Type: combined

Family: CISCO

Published: 3/13/2020

Updated: 4/8/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.6

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-2020-3190

CVSS v3

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios_xr

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/4/2020

Vulnerability Publication Date: 3/4/2020

Reference Information

CVE: CVE-2020-3190

CWE: 400

CISCO-SA: cisco-sa-iosxr-ipsec-dos-q8UPX6m

IAVA: 2020-A-0041-S

CISCO-BUG-ID: CSCvr75998

Detections

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