CVE-2017-6672 Security feature bypass in Cisco ASR 5000 Series Aggregation Services Routers
Unauthenticated remote attackers can bypass configured Access Control List rules on Cisco ASR 5000 routers due to filtering mechanism flaws.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-6672?
CVE-2017-6672 is a high-severity vulnerability in Cisco ASR 5000 Series Aggregation Services Routers, published on 25 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2017-6672?
It affects 1 product.
Products include Cisco Asr 5000 Series Software.
How do I fix CVE-2017-6672?
No fix has been published for CVE-2017-6672 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-6672 being exploited?
There is no known exploitation of CVE-2017-6672 in the wild and no public exploit code.
Other vulnerabilities in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2017-3819 Privilege escalation in Cisco StarOS
- CVE-2017-6612 Open redirect in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2016-6467 Denial of service in Cisco Aggregation Services Router (ASR) 5000 Series Switch
- CVE-2016-9203 Denial of service in Cisco ASR 5000
- CVE-2016-6466 Denial of service in Cisco StarOS 20.0.0 through 21.0.M0.64246
Sources
Also known as GHSA-3xgv-53v3-rfw4.