CVE-2017-12267 Denial of service in Cisco Wide Area Application Services
Unauthenticated remote attackers can cause a denial of service by sending crafted ICA traffic to Cisco WAAS devices, triggering a process restart.
- 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-2017-12267?
CVE-2017-12267 is a medium-severity denial of service vulnerability in Cisco Wide Area Application Services, published on 5 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the Independent Computing Architecture (ICA) accelerator feature for the Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause an ICA application optimization-related process to restart, resulting in a partial denial of service (DoS) condition. The vulnerability is due to improperly aborting a connection when an unexpected protocol packet is received. An attacker could exploit this vulnerability by sending a crafted ICA traffic through the targeted device. A successful exploit could allow the attacker to cause a DoS condition that is due to a process unexpectedly restarting. The Cisco WAAS could drop ICA traffic while the process is restarting. This vulnerability affects Cisco Wide Area Application Services (WAAS) and Cisco Virtual Wide Area Application Services (vWAAS). Cisco Bug IDs: CSCve74457.
Weakness: CWE-119
Which versions are affected by CVE-2017-12267?
It affects 2 products.
Products include Cisco Virtual Wide Area Application Services, Cisco Wide Area Application Services.
How do I fix CVE-2017-12267?
No fix has been published for CVE-2017-12267 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-2017-12267 being exploited?
There is no known exploitation of CVE-2017-12267 in the wild and no public exploit code.
Sources
Also known as GHSA-pcv3-rfhw-485x.