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ZDI-12-196 : Novell Groupwise GWIA ber_get_stringa Remote Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-196
December 21, 2012

- -- CVE ID:
CVE-2012-0417

- -- CVSS:
10, AV:N/AC:L/Au:N/C:C/I:C/A:C

- -- Affected Vendors:
Novell

- -- Affected Products:
Novell Groupwise


- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12495.
For further product information on the TippingPoint IPS, visit:

     http://www.tippingpoint.com

- -- 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:
  http://www.novell.com/support/kb/doc.php?id=7010770


- -- 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

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