CVE-2017-3876 - A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an

CVE-2017-3876

Summary

A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could allow the attacker to crash the device in such a manner that manual intervention is required to recover. This vulnerability affects all Cisco IOS XR platforms that are running release 6.1.1 of Cisco IOS XR Software when the gRPC service is enabled on the device. The gRPC service is not enabled by default. Cisco Bug IDs: CSCvb14441.

References

Vulnerable Configurations

cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:*

CVSS

Base:	7.8 (as of 03-10-2019 - 00:03)
Impact:
Exploitability:

CWE

NVD-CWE-noinfo

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	LOW	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	COMPLETE

cvss-vector via4

AV:N/AC:L/Au:N/C:N/I:N/A:C

refmap via4

bid	98284
confirm	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170503-ios-xr
sectrack	1038393

Last major update

03-10-2019 - 00:03

Published

16-05-2017 - 17:29

Last modified

03-10-2019 - 00:03