CVE-2001-0427 Denial of service in n/a

High 7.1 Published Updated

Remote attackers can cause denial of service on Cisco VPN concentrators by flooding invalid login requests to SSL or telnet services.

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-2001-0427?

CVE-2001-0427 is a high-severity denial of service vulnerability in n/a, published on 18 Sep 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via a flood of invalid login requests to (1) the SSL service, or (2) the telnet service, which do not properly disconnect the user after several failed login attempts.

Weakness: CWE-20

Which versions are affected by CVE-2001-0427?

It affects 6 products.

Products include Cisco Vpn 3000 Concentrator, Cisco Vpn 3005 Concentrator, Cisco Vpn 3015 Concentrator, Cisco Vpn 3030 Concentator, Cisco Vpn 3060 Concentrator, Cisco Vpn 3080 Concentrator.

How do I fix CVE-2001-0427?

No fix has been published for CVE-2001-0427 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-2001-0427 being exploited?

There is no known exploitation of CVE-2001-0427 in the wild and no public exploit code.

Sources

Also known as GHSA-6868-m557-3x86.

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