Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2019-1749

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
28/03/2019
Last modified:
07/02/2024

Description

A vulnerability in the ingress traffic validation of Cisco IOS XE Software for Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) could allow an unauthenticated, adjacent attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the software insufficiently validates ingress traffic on the ASIC used on the RSP3 platform. An attacker could exploit this vulnerability by sending a malformed OSPF version 2 (OSPFv2) message to an affected device. A successful exploit could allow the attacker to cause a reload of the iosd process, triggering a reload of the affected device and resulting in a DoS condition.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.40
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.0as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.3as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4bs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4cs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4ds:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4es:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4gs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.4s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.5as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.5s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.6bs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.6s:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools