Red Hat Directory Server LDAP search denial of service
| rhds-ldapsearch-dos (44733) |  Low Risk |
Description:
Red Hat Directory Server is vulnerable to a denial of service, caused by the improper handling of LDAP search patterns. By sending a specially-crafted LDAP request that matches malformed data records, a remote attacker with access to the LDAP service could exploit this vulnerability to consume all available CPU resources resulting in a denial of service.
*CVSS:
| Base Score: | 4 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | Single |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Red Hat Directory Server (7.1 SP7 or later), available from the Red Hat Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- HPSBUX02354 SSRT080113 rev.1: HP-UX Running Netscape / Red Hat Directory Server, Remote Cross Site Scripting (XSS) or Remote Denial of Service (DoS).
- Red Hat Web site: Red Hat Directory Server.
- BID-30871: Red Hat Directory Server Crafted Search Pattern Denial of Service Vulnerability
- CVE-2008-2930: Red Hat Directory Server 7.1 before SP7, Red Hat Directory Server 8, and Fedora Directory Server 1.1.1 allow remote attackers to cause a denial of service (CPU consumption and search outage) via crafted LDAP search requests with patterns, related to a single-threaded regular-expression subsystem.
- RHSA-2008-0596: Critical: Red Hat Directory Server 7.1 Service Pack 7 security update
- RHSA-2008-0602: Moderate: redhat-ds-base and redhat-ds-admin security and bug fix update
- RHSA-2008-0858: Moderate: redhat-ds-base security and bug fix update
- SA31565: Red Hat Directory Server Multiple Vulnerabilities
- SA31627: Red Hat Directory Server Denial of Service Vulnerabilities
- SA31702: HP-UX update for Netscape / Red Hat Directory Server
- SECTRACK ID: 1020773: Red Hat Directory Server Search Request Processing Bug Lets Remote Users Deny Service
- VUPEN/ADV-2008-2480: HP-UX Netscape / Red Hat Directory Server Remote Vulnerabilities
Platforms Affected:
- HP HP-UX B.11.11
- HP HP-UX B.11.23
- HP HP-UX B.11.31
- RedHat Directory Server 7.1
- RedHat Directory Server 8 EL4
- RedHat Directory Server 8 EL5
- RedHat Directory Server 8
- RedHat Enterprise Linux 4 WS
- RedHat Fedora Directory Server 1.1
Reported:
Aug 27, 2008
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.