CVE-2009-1138

The LDAP service in Active Directory on Microsoft Windows 2000 SP4 does not properly free memory for LDAP and LDAPS requests, which allows remote attackers to…

published June 10, 2009

CVSS
—
EPSS
39%
Percentile
98.6
In the wild
Unconfirmed
What it is

⚠️ A memory leak in Active Directory's LDAP service might let attackers execute code remotely! It’s like a tap that won't stop dripping — eventually, it can cause a flood! Think of it like a restaurant that keeps taking orders without ever clearing the tables. If the staff never removes the old plates, they’ll eventually run out of space for new customers, leading to chaos in the kitchen! If an attacker exploits this memory issue, they could potentially run arbitrary code on affected systems, leading to unauthorized access or harmful changes. While this vulnerability hasn’t been actively exploited yet, the risk is still there, and it could create a serious headache for your infrastructure.

Put simply

Think of it like a restaurant that keeps taking orders without ever clearing the tables. If the staff never removes the old plates, they’ll eventually run out of space for new customers, leading to chaos in the kitchen! The vulnerability arises from improper memory management in the LDAP service on Windows 2000 SP4. Specifically, when handling hexadecimal encoded requests, the memory associated with those requests isn’t released properly, leading to a potential remote code execution scenario.

What to do

If an attacker exploits this memory issue, they could potentially run arbitrary code on affected systems, leading to unauthorized access or harmful changes. While this vulnerability hasn’t been actively exploited yet, the risk is still there, and it could create a serious headache for your infrastructure. To mitigate this vulnerability, ensure that all systems are updated to a version of Windows that is no longer affected by this issue. Regularly monitor your network for unusual LDAP requests and consider isolating older systems if they cannot be updated. You've got this! Stay vigilant and keep your systems secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.39404 · 98.6th percentile
Published
2009-06-10T17:37Z
EPSS history
Timeline
  • 10 JUN 17:37Z
    The LDAP service in Active Directory on Microsoft Windows 2000 SP4 does not properly free memory for LDAP and LDAPS requests, which allows remote attackers to…
    cvelistv5