CVE-2016-9216 Denial of service in Cisco ASR 5000 Software
Remote unauthenticated attackers can cause a denial of service in the ipsecmgr process of Cisco ASR 5000 devices by sending malformed IKE packets.
- 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-2016-9216?
CVE-2016-9216 is a medium-severity denial of service vulnerability in Cisco ASR 5000 Software, published on 26 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An IKE Packet Parsing Denial of Service Vulnerability in the ipsecmgr process of Cisco ASR 5000 Software could allow an unauthenticated, remote attacker to cause the ipsecmgr process to reload. More Information: CSCuy06917 CSCuy45036 CSCuy59525. Known Affected Releases: 20.0.0 20.0.M0.62842 20.0.v0 20.0.M0.63229 20.1.0 20.1.a0 20.1.v0 21.0.0 21.0.v0. Known Fixed Releases: 20.0.0 20.0.0.63250 20.0.M0.63148 20.0.R0.63294 20.0.R0.63316 20.0.V0.63170 20.0.VG0.63188 20.0.v0 20.0.v0.64175 20.0.vg0.63522 20.1.A0.63166 20.2.A0.63174 20.1.A0.63232 20.2.A0.63237 20.0.M0.63226 20.0.M0.63229 20.0.R0.63294 20.0.R0.63316 20.0.V0.63263 20.0.VG0.63233 20.0.v0 20.0.v0.64175 20.0.vg0.63522 20.1.0 20.1.0.63959 20.1.M0.63876 20.1.T0.63886 20.1.V0.64231 20.1.VA0.64194 20.1.VB0.64210 20.1.a0 20.1.a0.64023 20.1.v0 20.1.v0.64607 20.2.A0.63895 21.0.0 21.0.0.65256 21.0.M0.63881 21.0.M0.64281 21.0.PP0.64366 21.0.V0.65052 21.0.v0 21.0.v0.65831 21.0.vb0.65887 21.1.R0.65130 21.1.R0.65135.
Weakness: CWE-399
Which versions are affected by CVE-2016-9216?
It affects 1 product.
Products include Cisco Asr 5000 Series Software.
How do I fix CVE-2016-9216?
No fix has been published for CVE-2016-9216 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-2016-9216 being exploited?
There is no known exploitation of CVE-2016-9216 in the wild and no public exploit code.
Other vulnerabilities in Cisco ASR 5000 Software
- 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-2016-9203 Denial of service in Cisco ASR 5000
Sources
Also known as GHSA-mjwr-2f4h-2wmg.