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google.cloud.securitycenter.v2.vulnerability.proto Maven / Gradle / Ivy

// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package google.cloud.securitycenter.v2;

import "google/protobuf/timestamp.proto";

option csharp_namespace = "Google.Cloud.SecurityCenter.V2";
option go_package = "cloud.google.com/go/securitycenter/apiv2/securitycenterpb;securitycenterpb";
option java_multiple_files = true;
option java_outer_classname = "VulnerabilityProto";
option java_package = "com.google.cloud.securitycenter.v2";
option php_namespace = "Google\\Cloud\\SecurityCenter\\V2";
option ruby_package = "Google::Cloud::SecurityCenter::V2";

// Refers to common vulnerability fields e.g. cve, cvss, cwe etc.
message Vulnerability {
  // CVE stands for Common Vulnerabilities and Exposures
  // (https://cve.mitre.org/about/)
  Cve cve = 1;

  // The offending package is relevant to the finding.
  Package offending_package = 2;

  // The fixed package is relevant to the finding.
  Package fixed_package = 3;

  // The security bulletin is relevant to this finding.
  SecurityBulletin security_bulletin = 4;
}

// CVE stands for Common Vulnerabilities and Exposures.
// Information from the [CVE
// record](https://www.cve.org/ResourcesSupport/Glossary) that describes this
// vulnerability.
message Cve {
  // The possible values of impact of the vulnerability if it was to be
  // exploited.
  enum RiskRating {
    // Invalid or empty value.
    RISK_RATING_UNSPECIFIED = 0;

    // Exploitation would have little to no security impact.
    LOW = 1;

    // Exploitation would enable attackers to perform activities, or could allow
    // attackers to have a direct impact, but would require additional steps.
    MEDIUM = 2;

    // Exploitation would enable attackers to have a notable direct impact
    // without needing to overcome any major mitigating factors.
    HIGH = 3;

    // Exploitation would fundamentally undermine the security of affected
    // systems, enable actors to perform significant attacks with minimal
    // effort, with little to no mitigating factors to overcome.
    CRITICAL = 4;
  }

  // The possible values of exploitation activity of the vulnerability in the
  // wild.
  enum ExploitationActivity {
    // Invalid or empty value.
    EXPLOITATION_ACTIVITY_UNSPECIFIED = 0;

    // Exploitation has been reported or confirmed to widely occur.
    WIDE = 1;

    // Limited reported or confirmed exploitation activities.
    CONFIRMED = 2;

    // Exploit is publicly available.
    AVAILABLE = 3;

    // No known exploitation activity, but has a high potential for
    // exploitation.
    ANTICIPATED = 4;

    // No known exploitation activity.
    NO_KNOWN = 5;
  }

  // The unique identifier for the vulnerability. e.g. CVE-2021-34527
  string id = 1;

  // Additional information about the CVE.
  // e.g. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34527
  repeated Reference references = 2;

  // Describe Common Vulnerability Scoring System specified at
  // https://www.first.org/cvss/v3.1/specification-document
  Cvssv3 cvssv3 = 3;

  // Whether upstream fix is available for the CVE.
  bool upstream_fix_available = 4;

  // The potential impact of the vulnerability if it was to be exploited.
  RiskRating impact = 5;

  // The exploitation activity of the vulnerability in the wild.
  ExploitationActivity exploitation_activity = 6;

  // Whether or not the vulnerability has been observed in the wild.
  bool observed_in_the_wild = 7;

  // Whether or not the vulnerability was zero day when the finding was
  // published.
  bool zero_day = 8;
}

// Additional Links
message Reference {
  // Source of the reference e.g. NVD
  string source = 1;

  // Uri for the mentioned source e.g.
  // https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34527.
  string uri = 2;
}

// Common Vulnerability Scoring System version 3.
message Cvssv3 {
  // This metric reflects the context by which vulnerability exploitation is
  // possible.
  enum AttackVector {
    // Invalid value.
    ATTACK_VECTOR_UNSPECIFIED = 0;

    // The vulnerable component is bound to the network stack and the set of
    // possible attackers extends beyond the other options listed below, up to
    // and including the entire Internet.
    ATTACK_VECTOR_NETWORK = 1;

    // The vulnerable component is bound to the network stack, but the attack is
    // limited at the protocol level to a logically adjacent topology.
    ATTACK_VECTOR_ADJACENT = 2;

    // The vulnerable component is not bound to the network stack and the
    // attacker's path is via read/write/execute capabilities.
    ATTACK_VECTOR_LOCAL = 3;

    // The attack requires the attacker to physically touch or manipulate the
    // vulnerable component.
    ATTACK_VECTOR_PHYSICAL = 4;
  }

  // This metric describes the conditions beyond the attacker's control that
  // must exist in order to exploit the vulnerability.
  enum AttackComplexity {
    // Invalid value.
    ATTACK_COMPLEXITY_UNSPECIFIED = 0;

    // Specialized access conditions or extenuating circumstances do not exist.
    // An attacker can expect repeatable success when attacking the vulnerable
    // component.
    ATTACK_COMPLEXITY_LOW = 1;

    // A successful attack depends on conditions beyond the attacker's control.
    // That is, a successful attack cannot be accomplished at will, but requires
    // the attacker to invest in some measurable amount of effort in preparation
    // or execution against the vulnerable component before a successful attack
    // can be expected.
    ATTACK_COMPLEXITY_HIGH = 2;
  }

  // This metric describes the level of privileges an attacker must possess
  // before successfully exploiting the vulnerability.
  enum PrivilegesRequired {
    // Invalid value.
    PRIVILEGES_REQUIRED_UNSPECIFIED = 0;

    // The attacker is unauthorized prior to attack, and therefore does not
    // require any access to settings or files of the vulnerable system to
    // carry out an attack.
    PRIVILEGES_REQUIRED_NONE = 1;

    // The attacker requires privileges that provide basic user capabilities
    // that could normally affect only settings and files owned by a user.
    // Alternatively, an attacker with Low privileges has the ability to access
    // only non-sensitive resources.
    PRIVILEGES_REQUIRED_LOW = 2;

    // The attacker requires privileges that provide significant (e.g.,
    // administrative) control over the vulnerable component allowing access to
    // component-wide settings and files.
    PRIVILEGES_REQUIRED_HIGH = 3;
  }

  // This metric captures the requirement for a human user, other than the
  // attacker, to participate in the successful compromise of the vulnerable
  // component.
  enum UserInteraction {
    // Invalid value.
    USER_INTERACTION_UNSPECIFIED = 0;

    // The vulnerable system can be exploited without interaction from any user.
    USER_INTERACTION_NONE = 1;

    // Successful exploitation of this vulnerability requires a user to take
    // some action before the vulnerability can be exploited.
    USER_INTERACTION_REQUIRED = 2;
  }

  // The Scope metric captures whether a vulnerability in one vulnerable
  // component impacts resources in components beyond its security scope.
  enum Scope {
    // Invalid value.
    SCOPE_UNSPECIFIED = 0;

    // An exploited vulnerability can only affect resources managed by the same
    // security authority.
    SCOPE_UNCHANGED = 1;

    // An exploited vulnerability can affect resources beyond the security scope
    // managed by the security authority of the vulnerable component.
    SCOPE_CHANGED = 2;
  }

  // The Impact metrics capture the effects of a successfully exploited
  // vulnerability on the component that suffers the worst outcome that is most
  // directly and predictably associated with the attack.
  enum Impact {
    // Invalid value.
    IMPACT_UNSPECIFIED = 0;

    // High impact.
    IMPACT_HIGH = 1;

    // Low impact.
    IMPACT_LOW = 2;

    // No impact.
    IMPACT_NONE = 3;
  }

  // The base score is a function of the base metric scores.
  double base_score = 1;

  // Base Metrics
  // Represents the intrinsic characteristics of a vulnerability that are
  // constant over time and across user environments.
  // This metric reflects the context by which vulnerability exploitation is
  // possible.
  AttackVector attack_vector = 2;

  // This metric describes the conditions beyond the attacker's control that
  // must exist in order to exploit the vulnerability.
  AttackComplexity attack_complexity = 3;

  // This metric describes the level of privileges an attacker must possess
  // before successfully exploiting the vulnerability.
  PrivilegesRequired privileges_required = 4;

  // This metric captures the requirement for a human user, other than the
  // attacker, to participate in the successful compromise of the vulnerable
  // component.
  UserInteraction user_interaction = 5;

  // The Scope metric captures whether a vulnerability in one vulnerable
  // component impacts resources in components beyond its security scope.
  Scope scope = 6;

  // This metric measures the impact to the confidentiality of the information
  // resources managed by a software component due to a successfully exploited
  // vulnerability.
  Impact confidentiality_impact = 7;

  // This metric measures the impact to integrity of a successfully exploited
  // vulnerability.
  Impact integrity_impact = 8;

  // This metric measures the impact to the availability of the impacted
  // component resulting from a successfully exploited vulnerability.
  Impact availability_impact = 9;
}

// Package is a generic definition of a package.
message Package {
  // The name of the package where the vulnerability was detected.
  string package_name = 1;

  // The CPE URI where the vulnerability was detected.
  string cpe_uri = 2;

  // Type of package, for example, os, maven, or go.
  string package_type = 3;

  // The version of the package.
  string package_version = 4;
}

// SecurityBulletin are notifications of vulnerabilities of Google products.
message SecurityBulletin {
  // ID of the bulletin corresponding to the vulnerability.
  string bulletin_id = 1;

  // Submission time of this Security Bulletin.
  google.protobuf.Timestamp submission_time = 2;

  // This represents a version that the cluster receiving this notification
  // should be upgraded to, based on its current version. For example, 1.15.0
  string suggested_upgrade_version = 3;
}