CVE-2019-1761 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  4.3 MEDIUM
Vector:  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Nist CVSS score does not match with CNA score
CNA:  Cisco Systems, Inc.
Base Score:  4.3 MEDIUM
Vector:  CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/107620 Third Party Advisory  VDB Entry 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-ios-infoleak Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-665 Improper Initialization cwe source acceptance level NIST   Reference acceptance level Cisco Systems, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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