Multiple vulnerabilities have been discovered in Novell's eDirectory's dhost.exe service, these vulnerabilities would allow an attacker to overflow internal buffers used by the product which can be then leveraged to cause the execution of arbitrary code.
Novell eDirectory Core Protocol Opcode 0x24 Heap Overflow Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell eDirectory Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within dhost.exe, the service responsible for directory replication which is bound by default to TCP port 524. Improper parsing within opcode 0x24 via the Netware Core Protocol can result in an arithmetic calculation based on supplied user-input resulting in an under-allocated heap buffer. This fault can be leveraged to result in arbitrary code execution.
Novell eDirectory Core Protocol Opcode 0x0F Heap Overflow Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell eDirectory Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within dhost.exe, the service responsible for directory replication which is bound by default to TCP port 524. Improper parsing within opcode 0x0F via the Netware Core Protocol can result in an arithmetic calculation based on supplied user-input resulting in an integer overflow that will be used to copy into a heap buffer. This fault can be leveraged to result in arbitrary code execution.
Novell eDirectory dhost.exe Accept Language Header Heap Overflow Vulnerability
This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Novell eDirectory. Authentication is not required to exploit this vulnerability.
The specific flaw resides in the web console running on TCP ports 8028 and 8030. The server exposes a web interface and accepts SOAP connections. The service copies the contents of the Accept-Language header within a SOAP request into a fixed-length buffer without any bounds checking. If an attacker sends a specially crafted request it will trigger an overflow during a memory copy operation leading to arbitrary code execution under the context of the SYSTEM user.
Novell eDirectory dhost.exe Content-Length Header Heap Overflow Vulnerability
This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Novell eDirectory. Authentication is not required to exploit this vulnerability.
The specific flaw resides in the web console running on TCP ports 8028 and 8030. The server exposes a web interface and accepts SOAP connections. While parsing the Content-Length header within a SOAP request an integer overflow can occur. This integer overflow triggers a subsequent overflow during a memory copy operation leading to arbitrary code execution under the context of the SYSTEM user.
