CVE-2005-1021 Denial of service in n/a
Remote attackers can cause denial of service via memory consumption in Cisco IOS SSH when TACACS+ authentication is enabled.
- 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-2005-1021?
CVE-2005-1021 is a high-severity denial of service vulnerability in Cisco Ios, published on 9 Apr 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Memory leak in Secure Shell (SSH) in Cisco IOS 12.0 through 12.3, when authenticating against a TACACS+ server, allows remote attackers to cause a denial of service (memory consumption) via an incorrect username or password.
Weakness: CWE-399
Which versions are affected by CVE-2005-1021?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2005-1021?
No fix has been published for CVE-2005-1021 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-2005-1021 being exploited?
There is no known exploitation of CVE-2005-1021 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-phww-46gm-5fww.