Novell Groupwise GWIA ber_get_stringa Remote Code Execution VulnerabilityZDI-12-196: December 21st, 2012
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12495. For further product information on the TippingPoint IPS:
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 ResponseNovell has issued an update to correct this vulnerability. More details can be found at:
2011-10-21 - Vulnerability reported to vendor
2012-12-21 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Francis Provencher From Protek Research Lab's