Sybase Adaptive Server Backup and Monitor Server NULL Write Remote Code Execution VulnerabilityZDI-11-246: July 29th, 2011
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11463. For further product information on the TippingPoint IPS:
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sybase Adaptive Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the way Sybase Backup and Monitor servers handles certain data in the login packets. Malformed packets can cause the service in question to write a NULL byte on the stack which can be leveraged by a remote attacker to execute code under the context of the running service.
Vendor ResponseSybase has issued an update to correct this vulnerability. More details can be found at:
2011-02-02 - Vulnerability reported to vendor
2011-07-29 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: