Re: "LAND" Attack Update

From: Aleph One (aleph1at_private)
Date: Thu Nov 20 1997 - 23:16:21 PST

  • Next message: Eric Thacker: "Land and Cisco Routers."

    OK. Some more people reported in. A lot of people now are reporting
    FreeBSD as not vulnerable. Yet the FreeBSD teams seems to have made a fix
    in their code tree. YMMV.
    
    Also you dot not need Winsocks 2 to run VTCPUPD. You can try it from:
    http://support.microsoft.com/download/support/mslfiles/Vtcpupd.exe
    As Ian C. Reandeau metioned VTCPUPD may only fix port 139. Try some other
    ports and see if it cracshed Windows 95. It also seem that once you instal
    
    A scary addition to the list is CISCO's IOS. This means that that any
    routers that do not filter connections to their telnet (or other open
    ports) can be taken down. It should be interesting to see what networking
    connectitivy will be like tomorrow.
    
    As pointed out filtering at the ingres router for spoofed packets will
    stop external attacks. You can also filter at the host level if your OS
    supports it.
    
    Something to look into on multihomed machines is if it will lock up when
    the packet contains two different source and destination addresses but
    both belonging to the same machine.
    
    AIX 3                                   IS  vulnerable
    BSDI 2.1 (vanilla)                      IS  vulnerable
    BSDI 2.1 (K210-021,K210-022,K210-024)   NOT vulnerable
    BSDI 3.0                                NOT vulnerable
    Digital UNIX 4.0                        NOT vulnerable
    FreeBSD 2.2.2-RELEASE                   (confilcting reports)
    FreeBSD 2.2.5-RELEASE                   (conflicting reports)
    FreeBSD 2.2.5-STABLE                    (conflicting reports)
    HP External JetDirect Print Servers     IS  vulnerable
    HP-UX 10.20                             IS  vulnerable
    IRIX 6.2                                NOT vulnerable
    IRIX 6.3                                NOT vulnerable
    IRIX 6.4                                NOT vulnerable
    Linux 2.0.30                            NOT vulnerable
    Linux 2.0.32                            NOT vulnerable
    MacOS 7.5.1                             NOT vulnerable
    MacOS 8.0                               IS  vulnerable (TCP/IP stack crashed)
    NetApp NFS server 4.3                   IS  vulnerable
    NetBSD 1.2                              IS  vulnerable
    NetBSD 1.2a                             IS  vulnerable
    NeXTSTEP 3.0                            IS  vulnerable
    NeXTSTEp 3.1                            IS  vulnerable
    Novell 4.11                             NOT vulnerable
    OpenBSD 2.1                             (conflicting reports)
    QNX 4.24                                IS  vulnerable
    OpenBSD 2.2 (Oct31)                     NOT vulnerable
    SCO OpenServer 5.0.4                    NOT vulnerable
    Salaris 2.4                             NOT vulnerable
    Solaris 2.5.1                           NOT vulnerable
    Solaris 2.6                             NOT vulnerable
    SunOS 4.1.4                             IS  vulnerable
    Windows 95 (vanilla)                    IS  vulnerable
    Windows 95 + Winsock 2 + VIPUPD.EXE     IS  vulnerable
    Windows NT (vanilla)                    IS  vulnerable
    Windows NT + SP3                        IS  vulnerable
    Windows NT + SP3 + simptcp-fix          IS  vulnerable
    
    Some misc stuff:
    
    Ascend Pipeline 50 rev 5.0Ap13          NOT vulnerable
    Cisco IOS 10.3(7)                       IS  vulnerable
    Cisco 2511 IOS ???                      IS  vulnerable
    Cisco 753 IOS ???                       IS  vulnerable
    LaserJet Printer                        NOT vulnerable
    Livingston Office Router (ISDN)         IS  vulnerable
    Livingston PM* ComOS 3.5b17 + 3.7.2     NOT vulnerable
    NCD X Terminals, NCDWare v3.2.1         IS  vulnerable
    
    
    
    Aleph One / aleph1at_private
    http://underground.org/
    KeyID 1024/948FD6B5
    Fingerprint EE C9 E8 AA CB AF 09 61  8C 39 EA 47 A8 6A B8 01
    



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