TippingPoint Zero Day Initiative
 

Novell Groupwise GWIA ber_get_stringa Remote Code Execution Vulnerability

ZDI-12-196: December 21st, 2012

CVE ID

CVSS Score

Affected Vendors

Affected Products

    Groupwise

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12495. For further product information on the TippingPoint IPS:

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell Groupwise. Authentication is not required to exploit this vulnerability.

The flaw exists within the Groupwise Internet Agent component, specifically the optional LDAP server which listens on tcp port 389. When parsing a BER encoded parameter the specified size is used to allocate a destination buffer. A properly encoded BER chunk could cause an integer size value to wrap before buffer allocation. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM account.

Vendor Response

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

Disclosure Timeline

    2011-10-21 - Vulnerability reported to vendor
    2012-12-21 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Francis Provencher From Protek Research Lab's