CVE-2017-6672

HIGH

Cisco ASR 5000 Series Software - Unauthenticated Access Control List Bypass

Title source: llm

Description

A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870.

References (3)

Core 3

Core References

Vendor Advisory x_refsource_confirm

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-asr1

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/99921

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1038962

Scores

CVSS v3 7.5

EPSS 0.0183

EPSS Percentile 76.2%

Attack Vector NETWORK

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

Details

CWE

CWE-863

Status published

Products (24)

cisco/asr_5000_series_software 19.3.5

cisco/asr_5000_series_software 19.3.11

cisco/asr_5000_series_software 19.3.12

cisco/asr_5000_series_software 19.6.0

cisco/asr_5000_series_software 19.6.3

cisco/asr_5000_series_software 19.6.6

cisco/asr_5000_series_software 20.1.v5

cisco/asr_5000_series_software 20.2.4

cisco/asr_5000_series_software 20.2.12

cisco/asr_5000_series_software 20.3.0

... and 14 more

Published Jul 25, 2017

Tracked Since Feb 18, 2026