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Update Protection against Oracle Database Server Network Authentication AUTH_SESSKEY Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2009-274
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory: SA37027
Industry Reference(s): CVE-2009-1979
Protection Provided by: Security Gateway
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Oracle Database 10g 10.1.0.5
Oracle Database 10g Release 2 10.2.0.4
Vulnerability Description
A buffer overflow vulnerability exists in the Oracle Database server, an enterprise-level relational database application suite. A remote attacker may exploit this vulnerability to execute arbitrary code on a vulnerable system.
Update/Patch Available
Apply patches:
Oracle Critical Patch Update Advisory - October 2009
Vulnerability Details
The vulnerability is due to an error in the Oracle Database server that fails to sufficiently validate the length field of the AUTH_SESSKEY parameter. A remote attacker can exploit this issue by sending malicious packets to the target server. Successful exploitation of this vulnerability would allow the attacker to execute arbitrary code remotely.

Protection Overview
This protection will detect and block Oracle traffic with overly long AUTH_SESSKEY parameter.

In order for the protection to be activated, update your Security Gateway/VPN-1 product to the latest IPS/SmartDefense update. For information on how to update IPS/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.

Security Gateway R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Database Protections > Oracle.
2. In the right pane, double-click the Oracle Database Server Network Authentication AUTH_SESSKEY Buffer Overflow protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Oracle Protection Violation
Attack Information: Oracle database server network authentication AUTH_SESSKEY buffer overflow

VPN-1 NGX R65 & VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Database Protections > Oracle > Oracle Database Server Network Authentication AUTH_SESSKEY Buffer Overflow protection.
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: Oracle Protection Violation
Attack Information: Oracle database server network authentication AUTH_SESSKEY buffer overflow

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?

1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Application Intelligence > Oracle, and select the Oracle AUTH_SESSKEY protection group.
3. Click Oracle AUTH_SESSKEY Buffer Overflow (IPS-1 NGX R65 only).
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?

Upon attack, the following entries will be logged:

Alert Name: Oracle AUTH_SSKEY Backend
Description: Oracle AUTH_SESSKEY Buffer Overflow