CVE-2016-9203 Denial of service in Cisco ASR 5000
An unauthenticated remote attacker can cause a reload of the ipsecmgr process in Cisco ASR 5000 Series Software, leading to a denial of service.
- 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-2016-9203?
CVE-2016-9203 is a high-severity denial of service vulnerability in Cisco ASR 5000, published on 14 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco ASR 5000 Series Software could allow an unauthenticated, remote attacker to cause a reload of the ipsecmgr process. More Information: CSCvb38398. Known Affected Releases: 20.2.3 20.2.3.65026. Known Fixed Releases: 21.1.M0.65431 21.1.PP0.65733 21.1.R0.65467 21.1.R0.65496 21.1.VC0.65434 21.1.VC0.65489 21.2.A0.65437.
Weakness: CWE-119
Which versions are affected by CVE-2016-9203?
It affects 1 product.
Products include Cisco Asr 5000 Series Software.
How do I fix CVE-2016-9203?
No fix has been published for CVE-2016-9203 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-9203 being exploited?
There is no known exploitation of CVE-2016-9203 in the wild and no public exploit code.
Other vulnerabilities in Cisco ASR 5000
- CVE-2017-3819 Privilege escalation in Cisco StarOS
- CVE-2017-6612 Open redirect in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2017-6672 Security feature bypass in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2016-6467 Denial of service in Cisco Aggregation Services Router (ASR) 5000 Series Switch
- CVE-2016-6466 Denial of service in Cisco StarOS 20.0.0 through 21.0.M0.64246
Sources
Also known as GHSA-53x7-9h7x-57wx.