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Home Documentation Junos OS Junos CLI Reference CLI Reference C

Junos CLI Reference

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Junos CLI Reference
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custom-attack

date_range 20-Nov-23
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Syntax

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custom-attack attack-name {
    attack-type (Security Anomaly) {
        anomaly {
            direction (any | client-to-server | server-to-client);
            service service-name;
            shellcode (all | intel | no-shellcode | sparc);
            test test-condition;
        }
        chain {
            expression boolean-expression;
            member member-name {
                attack-type (Security Anomaly) {
                    (anomaly ...same statements as in [edit security idp custom-attack attack-name attack-type anomaly] hierarchy level | signature ...same statements as in [edit security idp custom-attack attack-name attack-type signature] hierarchy level);
                }
            }
            order;
            protocol-binding {
                application application-name;
                icmp;
                icmpv6;
                ip {
                    protocol-number transport-layer-protocol-number;
                }
                ipv6 {
                    protocol-number transport-layer-protocol-number;
                }
                rpc {
                    program-number rpc-program-number;
                }
                tcp {
                    minimum-port port-number <maximum-port port-number>;
                }
                udp {
                    minimum-port port-number <maximum-port port-number>;
                }
            }
            reset;
            scope (session | transaction);
        }
        signature (Security IDP) {
            context context-name;
            direction (any | client-to-server | server-to-client);
            negate;
            pattern signature-pattern;
            pattern-pcre signature-pattern-pcre;
            protocol (Security IDP Signature Attack) {
                icmp {
                    checksum-validate {
                        match (equal | greater-than | less-than | not-equal);
                        value checksum-value;
                    }
                    code {
                        match (equal | greater-than | less-than | not-equal);
                        value code-value;
                    }
                    data-length {
                        match (equal | greater-than | less-than | not-equal);
                        value data-length;
                    }
                    identification {
                        match (equal | greater-than | less-than | not-equal);
                        value identification-value;
                    }
                    sequence-number {
                        match (equal | greater-than | less-than | not-equal);
                        value sequence-number;
                    }
                    type {
                        match (equal | greater-than | less-than | not-equal);
                        value type-value;
                    }
                }
                icmpv6 (Security IDP Custom Attack) {
                    checksum-validate {
                        match (equal | greater-than | less-than | not-equal);
                        value checksum-value;
                    }
                    code {
                        match (equal | greater-than | less-than | not-equal);
                        value code-value;
                    }
                    data-length {
                        match (equal | greater-than | less-than | not-equal);
                        value data-length;
                    }
                    identification {
                        match (equal | greater-than | less-than | not-equal);
                        value identification-value;
                    }
                    sequence-number {
                        match (equal | greater-than | less-than | not-equal);
                        value sequence-number;
                    }
                    type {
                        match (equal | greater-than | less-than | not-equal);
                        value type-value;
                    }
                }
                ipv4 (Security IDP Signature Attack) {
                    checksum-validate {
                        match (equal | greater-than | less-than | not-equal);
                        value checksum-value;
                    }
                    destination {
                        match (equal | greater-than | less-than | not-equal);
                        value ip-address-or-hostname;
                    }
                    identification {
                        match (equal | greater-than | less-than | not-equal);
                        value identification-value;
                    }
                    ihl {
                        match (equal | greater-than | less-than | not-equal);
                        value ihl-value;
                    }
                    ip-flags {
                        (df | no-df);
                        (mf | no-mf);
                        (rb | no-rb);
                    }
                    protocol (Security IDP Signature Attack) {
                        match (equal | greater-than | less-than | not-equal);
                        value transport-layer-protocol-id;
                    }
                    source {
                        match (equal | greater-than | less-than | not-equal);
                        value ip-address-or-hostname;
                    }
                    tos {
                        match (equal | greater-than | less-than | not-equal);
                        value type-of-service-in-decimal;
                    }
                    total-length {
                        match (equal | greater-than | less-than | not-equal);
                        value total-length-of-ip-datagram;
                    }
                    ttl {
                        match (equal | greater-than | less-than | not-equal);
                        value time-to-live;
                    }
                }
                ipv6 {
                    destination {
                        match (equal | greater-than | less-than | not-equal);
                        value ip-address-or-hostname;
                    }
                    flow-label {
                        match (equal | greater-than | less-than | not-equal);
                        value flow-label-value;
                    }
                    hop-limit {
                        match (equal | greater-than | less-than | not-equal);
                        value hop-limit-value;
                    }
                    next-header {
                        match (equal | greater-than | less-than | not-equal);
                        value next-header-value;
                    }
                    payload-length {
                        match (equal | greater-than | less-than | not-equal);
                        value payload-length-value;
                    }
                    source {
                        match (equal | greater-than | less-than | not-equal);
                        value ip-address-or-hostname;
                    }
                    traffic-class {
                        match (equal | greater-than | less-than | not-equal);
                        value traffic-class-value;
                    }
                tcp (Security IDP Signature Attack){
                    ack-number {
                        match (equal | greater-than | less-than | not-equal);
                        value acknowledgement-number;
                    }
                    checksum-validate {
                        match (equal | greater-than | less-than | not-equal);
                        value checksum-value;
                    }
                    data-length {
                        match (equal | greater-than | less-than | not-equal);
                        value tcp-data-length;
                    }
                    destination-port (Security Signature Attack) {
                        match (equal | greater-than | less-than | not-equal);
                        value destination-port;
                    }
                    header-length {
                        match (equal | greater-than | less-than | not-equal);
                        value header-length;
                    }
                    mss (Security IDP) {
                        match (equal | greater-than | less-than | not-equal);
                        value maximum-segment-size;
                    }
                    option (Security IDP) {
                        match (equal | greater-than | less-than | not-equal);
                        value tcp-option;
                    }
                    reserved (Security IDP Custom Attack) {
                        match (equal | greater-than | less-than | not-equal);
                        value reserved-value;
                    }
                    sequence-number (Security IDP ICMP Headers) {
                        match (equal | greater-than | less-than | not-equal);
                        value sequence-number;
                    }
                    source-port {
                        match (equal | greater-than | less-than | not-equal);
                        value source-port;
                    }
                    tcp-flags {
                        (ack | no-ack);
                        (fin | no-fin);
                        (psh | no-psh);
                        (r1 | no-r1);
                        (r2 | no-r2);
                        (rst | no-rst);
                        (syn | no-syn);
                        (urg | no-urg);
                    }
                    urgent-pointer {
                        match (equal | greater-than | less-than | not-equal);
                        value urgent-pointer;
                    }
                    window-scale {
                        match (equal | greater-than | less-than | not-equal);
                        value window-scale-factor;
                    }
                    window-size {
                        match (equal | greater-than | less-than | not-equal);
                        value window-size;
                    }
                }
                udp (Security IDP Signature Attack) {
                    checksum-validate {
                        match (equal | greater-than | less-than | not-equal);
                        value checksum-value;
                    }
                    data-length {
                        match (equal | greater-than | less-than | not-equal);
                        value data-length;
                    }
                    destination-port {
                        match (equal | greater-than | less-than | not-equal);
                        value destination-port;
                    }
                    source-port {
                        match (equal | greater-than | less-than | not-equal);
                        value source-port;
                    }
                }
            }
            protocol-binding {
                application application-name;
                icmp;
                icmpv6;
                ip {
                    protocol-number transport-layer-protocol-number;
                }
                ipv6 {
                    protocol-number transport-layer-protocol-number;
                }
                rpc {
                    program-number rpc-program-number;
                }
                tcp {
                    minimum-port port-number <maximum-port port-number>;
                }
                udp {
                    minimum-port port-number <maximum-port port-number>;
                }
            }
            regexp regular-expression;
            shellcode (all | intel | no-shellcode | sparc);
        }
    }
    recommended-action (close | close-client | close-server | drop | drop-packet | ignore | none);
    severity (critical | info | major | minor | warning);
    time-binding {
        count count-value;
        scope (destination | peer | source);
    }
}

Hierarchy Level

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[edit security idp]
[edit tenants tenant-name security idp]

Description

Configure custom attack objects to detect a known or unknown attack that can be used to compromise your network.

Options

attack-name—Name of the custom attack object. The maximum number of characters allowed for a custom attack object name is 60.

The remaining statements are explained separately. See CLI Explorer.

Required Privilege Level

security—To view this statement in the configuration.

security-control—To add this statement to the configuration.

Release Information

Statement modified in Junos OS Release 9.3.

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