TippingPoint Zero Day Initiative
 

Sun Microsystems Directory Server Enterprise ASN.1 Parsing Remote Code Execution Vulnerability

ZDI-10-074: April 13th, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

    Directory Server

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9282. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Sun Microsystems Directory Service Manager. Authentication is not required to exploit this vulnerability.

The specific flaw exists within Sun Directory Server's LDAP implementation and can be triggered via a malformed LDAP query to the ns_slapd service. When the service decodes the malformed extendedRequest query containing a malformed requestValue string, the application will cause a buffer overflow which can lead to code execution under the context of the service.

Vendor Response

Sun Microsystems has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2009-10-27 - Vulnerability reported to vendor
    2010-04-13 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous