CVE-2005-1020 Denial of service in n/a
Remote attackers can cause a denial of service and device reload in Cisco IOS SSH via specific authentication or session termination conditions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2005-1020?
CVE-2005-1020 is a high-severity denial of service vulnerability in Cisco Ios, published on 9 Apr 2005. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data.
Weakness: CWE-287
Which versions are affected by CVE-2005-1020?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2005-1020?
No fix has been published for CVE-2005-1020 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-2005-1020 being exploited?
There is no known exploitation of CVE-2005-1020 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-v2x2-6pmp-ggmv.