CVE-2016-6393 Denial of service in n/a
Remote attackers can cause a device reload via a failed SSH connection attempt in Cisco IOS and IOS XE.
- 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-2016-6393?
CVE-2016-6393 is a high-severity denial of service vulnerability in Cisco Ios, published on 5 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The AAA service in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.1 through 3.18 and 16.2 allows remote attackers to cause a denial of service (device reload) via a failed SSH connection attempt that is mishandled during generation of an error-log message, aka Bug ID CSCuy87667.
Weakness: CWE-399
Which versions are affected by CVE-2016-6393?
It affects 2 products.
Products include Cisco Ios, Cisco Ios Xe.
How do I fix CVE-2016-6393?
No fix has been published for CVE-2016-6393 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-2016-6393 being exploited?
There is no known exploitation of CVE-2016-6393 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-p9p2-82qv-h9q7.