Advisory Details

December 21st, 2012

Novell Groupwise GWIA ber_get_stringa Remote Code Execution Vulnerability

ZDI-12-196
ZDI-CAN-1347

CVE ID CVE-2012-0417
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Novell
AFFECTED PRODUCTS Groupwise
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12495. For further product information on the TippingPoint IPS: 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.

ADDITIONAL DETAILS 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 Francis Provencher From Protek Research Lab's
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