CVE-2011-2014

The LDAP over SSL (aka LDAPS) implementation in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service…

published November 8, 2011

CVSS
—
EPSS
11%
Percentile
95.9
In the wild
Unconfirmed
What it is

⚠️ A sneaky loophole allows users to waltz past certificate checks with a revoked X.509 certificate in LDAPS! This means some remote authenticated users could suddenly have access to your precious Active Directory resources. 🔥 Think of it like a restaurant that doesn't check the blacklist of banned customers; someone on that list could show up with a fake ID and get a free meal! In this case, the affected systems aren't verifying if a certificate has been revoked, letting unwanted guests into the server. An attacker could exploit this vulnerability to gain unauthorized access to sensitive Active Directory data, potentially allowing them to manipulate user permissions or siphon off confidential information. That means your user data could be at risk, which is absolutely devastating!

Put simply

Think of it like a restaurant that doesn't check the blacklist of banned customers; someone on that list could show up with a fake ID and get a free meal! In this case, the affected systems aren't verifying if a certificate has been revoked, letting unwanted guests into the server. This vulnerability in the LDAPS implementation allows remote authenticated users to bypass certificate restrictions by not checking Certificate Revocation Lists (CRLs), enabling access with revoked certificates.

What to do

An attacker could exploit this vulnerability to gain unauthorized access to sensitive Active Directory data, potentially allowing them to manipulate user permissions or siphon off confidential information. That means your user data could be at risk, which is absolutely devastating! To mitigate this risk, ensure you implement the latest patches and updates from Microsoft for your Active Directory services. Additionally, consider configuring your systems to properly check CRLs to prevent bypass scenarios. It's essential to audit your current security settings regularly to maintain a robust defense! You've got this! Stay proactive, and with these fixes, your Active Directory will be locked down tighter than ever! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.10965 · 95.9th percentile
Published
2011-11-08T21:00Z
EPSS history
Timeline
  • 08 NOV 21:00Z
    The LDAP over SSL (aka LDAPS) implementation in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service…
    cvelistv5