Update Protection against Novell eDirectory Denial of Service Vulnerability
| Check Point Reference: | CPAI-2007-022 | |
| Date Published: | ||
| Severity: | ||
| Last Updated: | ||
| Source: | Secunia Advisory: SA22506 | |
| Industry Reference(s): | CVE-2006-4510 | |
| Protection Provided by: |
VPN-1
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| Who is Vulnerable? Novell eDirectory 8.8.1 and prior Novell eDirectory 8.7.3.8 and prior | ||
| Vulnerability Description Novell eDirectory server is vulnerable to a denial of service (DoS) condition. Novell eDirectory is a set of services based on the Lightweight Directory Access Protocol (LDAP). The vulnerability can be exploited by remote attackers to crash the service or execute code via a specially crafted LDAP request to an affected LDAP server. |
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Vulnerability Details The vulnerability is due to an invalid free in the 'evtFilteredMonitorEventsRequest' function in the service in Novell eDirectory that fails to properly process overly long LDAP requests. Remote attackers can exploit this issue by sending specially crafted LDAP requests to a vulnerable server and causing it to crash. Successful exploitation may allow execution of arbitrary code on the vulnerable system. |
Protection Overview
By enabling this protection, SmartDefense will detect and block the specially crafted LDAP requests that may lead to a denial of service condition on the affected LDAP server.
In order for the protection to be activated, update your VPN-1/InterSpect product to the latest SmartDefense update. For information on how to update SmartDefense, go to SBP-2006-05, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.
Additional Information
The Update released on February 22, 2007 includes the following protections:
AOL (CDDB) Control Buffer Overflow Vulnerability (CPAI-2007-013)
3Com TFTP Server Buffer Overflow Vulnerability (CPAI-2007-014)
IBM Tivoli Storage Manager Buffer Overflow Vulnerability (CPAI-2007-015)
CA BrightStor Discovery Buffer Overflow Vulnerability (CPAI-2007-016)
Symantec Veritas NetBackup Buffer Overflow Vulnerability (CPAI-2007-017)
Novell NetMail NMAP Buffer Overflow Vulnerability (CPAI-2007-018)
Citrix Presentation Remote Code Execution Vulnerability (CPAI-2007-019)
Microsoft Windows SNMP Memory Corruption Vulnerability (MS06-074) - CPAI-2007-020
Novell Print Spooler Buffer Overflow Vulnerability (CPAI-2007-021)
Novell eDirectory Denial of Service Vulnerability (CPAI-2007-022)
Microsoft Windows Print Spooler Service Denial of Service Vulnerability (CPAI-2007-023)
Multiple SNMP Vulnerabilities (SBP-2007-03)
VPN-1 NGX R62
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > LDAP > LDAP Server Remote DoS.
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: LDAP Protections
Attack Information: Novell eDirectory DoS attempt detected
VPN-1 NGX R61, VPN-1 NGX R60, VPN-1 NG with Application Intelligence R55W
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > LDAP.
2. Enable the following protection:
LDAP Server Remote DoS
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: LDAP Protections
Attack Information: Novell eDirectory DoS attempt detected
VPN-1 NG with Application Intelligence R55
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > LDAP.
2. Select the following:
LDAP Server Remote DoS
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99821 will appear on the SmartView Tracker.
VPN-1 VSX NGX
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > LDAP.
2. Select the following:
LDAP Server Remote DoS
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99821 will appear on the SmartView Tracker.
InterSpect NGX
How Can I Protect My Network?
1. In the lefthand menu, click Profiles > Default Protection > SmartDefense. The SmartDefense page opens.
2. In the SmartDefense tree, click Application Intelligence > LDAP and enable the following protection:
LDAP Server Remote DoS
3. Install security policy.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: LDAP Protections
Attack Information: Novell eDirectory DoS attempt detected
InterSpect 2.0
How Can I Protect My Network?
1. Click Application Intelligence > LDAP and enable the following protection:
LDAP Server Remote DoS
2. Install security policy.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: LDAP Protections
Attack Information: Novell eDirectory DoS attempt detected