CVE-2017-6672

CVE	CVE-2017-6672
State	PUBLISHED
Assigner	cisco
Source Priority	CVE Program / NVD first with legacy fallback
Published	2017-07-25 19:29:00 UTC
Updated	2025-04-20 01:37:25 UTC
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.

Primary CVSS: v3.0 7.5 HIGH from [email protected]

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

Problem Types: CWE-863 | Access Control List Security Bypass Vulnerability

Version	Source	Type	Score	Severity	Vector
3.0	[email protected]	Primary	7.5	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`
2.0	[email protected]	Primary	5		`AV:N/AC:L/Au:N/C:N/I:P/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

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

Access Vector

Network

Access Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

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

Type	Vendor	Product	Version	Update	Edition	Language
Application	Cisco	Asr 5000 Series Software	19.3.11	All	All	All
Application	Cisco	Asr 5000 Series Software	19.3.12	All	All	All
Application	Cisco	Asr 5000 Series Software	19.3.5	All	All	All
Application	Cisco	Asr 5000 Series Software	19.6.0	All	All	All
Application	Cisco	Asr 5000 Series Software	19.6.3	All	All	All
Application	Cisco	Asr 5000 Series Software	19.6.6	All	All	All
Application	Cisco	Asr 5000 Series Software	20.1.v5	All	All	All
Application	Cisco	Asr 5000 Series Software	20.2.12	All	All	All
Application	Cisco	Asr 5000 Series Software	20.2.4	All	All	All
Application	Cisco	Asr 5000 Series Software	20.3.0	All	All	All
Application	Cisco	Asr 5000 Series Software	20.3.1	All	All	All
Application	Cisco	Asr 5000 Series Software	21.0.v1.66638	All	All	All
Application	Cisco	Asr 5000 Series Software	21.0.v2	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.0	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.2	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.m0.65710	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.m0.65921	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.m0.65931	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.m0.65986	All	All	All
Application	Cisco	Asr 5000 Series Software	21.1.v0	All	All	All
Application	Cisco	Asr 5000 Series Software	21.2.a0.65914	All	All	All
Application	Cisco	Asr 5000 Series Software	21.2.a0.65995	All	All	All
Application	Cisco	Asr 5000 Series Software	21.3.0	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Na	Cisco ASR 5000 Series Aggregation Services Routers	affected Cisco ASR 5000 Series Aggregation Services Routers	Not specified

Reference	Source	Link	Tags
Cisco ASR 5000 Series Router Lets Remote Users Bypass Security Restrictions on the Target System - SecurityTracker	af854a3a-2127-422b-91ae-364da2661108	www.securitytracker.com	Third Party Advisory, VDB Entry
Cisco ASR 5000 Series Aggregation Services Router CVE-2017-6672 Security Bypass Vulnerability	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Third Party Advisory, VDB Entry
Cisco ASR 5000 Series Aggregation Services Routers Access Control List Security Bypass Vulnerability	af854a3a-2127-422b-91ae-364da2661108	tools.cisco.com	Vendor Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.