CVE-2009-2818 Auth bypass in n/a

Medium 5.0 Published Updated

Remote attackers can bypass the Adaptive Firewall's brute-force protection via invalid SSH usernames, facilitating unauthorized access to macOS systems.

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-2009-2818?

CVE-2009-2818 is a medium-severity authentication bypass vulnerability in Apple Mac Os X Server, published on 10 Nov 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Adaptive Firewall in Apple Mac OS X before 10.6.2 does not properly handle invalid usernames in SSH login attempts, which makes it easier for remote attackers to obtain login access via a brute-force attack (aka dictionary attack).

Weakness: CWE-264

Which versions are affected by CVE-2009-2818?

It affects 1 product.

Products include Apple Mac Os X Server.

How do I fix CVE-2009-2818?

No fix has been published for CVE-2009-2818 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2009-2818 being exploited?

There is no known exploitation of CVE-2009-2818 in the wild and no public exploit code.

All Apple Mac Os X Server vulnerabilities

Sources

Also known as GHSA-mrg5-xx7w-3qcp.

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