CVE-2017-3865 Denial of service in Cisco StarOS for ASR 5000 Series Routers
Unauthenticated remote attackers can terminate active IPsec VPN tunnels and prevent new connections, causing a denial of service on Cisco ASR 5000 routers.
- 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-2017-3865?
CVE-2017-3865 is a medium-severity denial of service vulnerability in Cisco StarOS for ASR 5000 Series Routers, published on 4 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the IPsec component of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an unauthenticated, remote attacker to terminate all active IPsec VPN tunnels and prevent new tunnels from establishing, resulting in a denial of service (DoS) condition. Affected Products: ASR 5000 Series Routers, Virtualized Packet Core (VPC) Software. More Information: CSCvc21129. Known Affected Releases: 21.1.0 21.1.M0.65601 21.1.v0. Known Fixed Releases: 21.2.A0.65754 21.1.b0.66164 21.1.V0.66014 21.1.R0.65759 21.1.M0.65749 21.1.0.66030 21.1.0.
Which versions are affected by CVE-2017-3865?
It affects 1 product.
Products include Cisco Staros.
How do I fix CVE-2017-3865?
No fix has been published for CVE-2017-3865 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-2017-3865 being exploited?
There is no known exploitation of CVE-2017-3865 in the wild and no public exploit code.
Other vulnerabilities in Cisco StarOS for ASR 5000 Series Routers
- CVE-2023-20046 Auth bypass in Cisco ASR 5000 Series Software
- CVE-2019-1869 Cisco StarOS Denial of Service Vulnerability
- CVE-2018-0369 Denial of service in Cisco StarOS unknown
- CVE-2017-6707 Command injection in Cisco StarOS
- CVE-2021-1539 Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities
Sources
Also known as GHSA-v9jg-22vm-mw6w.