CVE-2011-2586 Denial of service in n/a
Remote attackers can crash Cisco IOS devices by sending malformed HTTP responses during service installation requests, requiring user assistance.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2011-2586?
CVE-2011-2586 is a medium-severity denial of service vulnerability in Cisco Ios, published on 2 May 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The HTTP client in Cisco IOS 12.4 and 15.0 allows user-assisted remote attackers to cause a denial of service (device crash) via a malformed HTTP response to a request for service installation, aka Bug ID CSCts12249.
Weakness: CWE-20
Which versions are affected by CVE-2011-2586?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2011-2586?
No fix has been published for CVE-2011-2586 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-2011-2586 being exploited?
There is no known exploitation of CVE-2011-2586 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-4444-267r-x82x.