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CWE-862 (授权机制缺失) — Vulnerability Class 5581

5581 vulnerabilities classified as CWE-862 (授权机制缺失). AI Chinese analysis included.

CWE-862 represents a critical access control weakness where software fails to verify an actor’s permissions before granting access to resources or executing actions. Attackers typically exploit this flaw by manipulating requests to access sensitive data or perform privileged operations that should be restricted to authorized users. Without proper checks, malicious actors can bypass authentication mechanisms entirely, leading to unauthorized data exposure, modification, or system compromise. Developers mitigate this risk by implementing robust authorization logic at every entry point, ensuring that identity verification is coupled with strict permission validation. This involves checking user roles and access rights against the requested resource before processing any request. By integrating these checks into the application’s core architecture and utilizing established frameworks, teams can prevent unauthorized access and maintain the integrity of their systems against exploitation.

MITRE CWE Description
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Common Consequences (4)
ConfidentialityRead Application Data, Read Files or Directories
An attacker could read sensitive data, either by reading the data directly from a data store that is not restricted, or by accessing insufficiently-protected, privileged functionality to read the data.
IntegrityModify Application Data, Modify Files or Directories
An attacker could modify sensitive data, either by writing the data directly to a data store that is not restricted, or by accessing insufficiently-protected, privileged functionality to write the data.
Access ControlGain Privileges or Assume Identity, Bypass Protection Mechanism
An attacker could gain privileges by modifying or reading critical data directly, or by accessing privileged functionality.
AvailabilityDoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other)
An attacker could gain unauthorized access to resources on the system and excessively consume those resources, leading to a denial of service.
Mitigations (5)
Architecture and DesignDivide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the …
Architecture and DesignEnsure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible…
Architecture and DesignUse a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Architecture and DesignFor web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests …
System Configuration, InstallationUse the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
Examples (2)
This function runs an arbitrary SQL query on a given database, returning the result of the query.
function runEmployeeQuery($dbName, $name){ mysql_select_db($dbName,$globalDbHandle) or die("Could not open Database".$dbName); //Use a prepared statement to avoid CWE-89 $preparedStatement = $globalDbHandle->prepare('SELECT * FROM employees WHERE name = :name'); $preparedStatement->execute(array(':name' => $name)); return $preparedStatement->fetchAll(); } /.../ $employeeRecord = runEmployeeQuery('EmployeeDB',$_GET['EmployeeName']);
Bad · PHP
The following program could be part of a bulletin board system that allows users to send private messages to each other. This program intends to authenticate the user before deciding whether a private message should be displayed. Assume that LookupMessageObject() ensures that the $id argument is numeric, constructs a filename based on that id, and reads the message details from that file. Also ass…
sub DisplayPrivateMessage { my($id) = @_; my $Message = LookupMessageObject($id); print "From: " . encodeHTML($Message->{from}) . "<br>\n"; print "Subject: " . encodeHTML($Message->{subject}) . "\n"; print "<hr>\n"; print "Body: " . encodeHTML($Message->{body}) . "\n"; } my $q = new CGI; # For purposes of this example, assume that CWE-309 and # CWE-523 do not apply. if (! AuthenticateUser($q->param('username'), $q->param('password'))) { ExitError("invalid username or password"); } my $id = $q->param('id'); DisplayPrivateMessage($id);
Bad · Perl
CVE IDTitleCVSSSeverityPublished
CVE-2020-27777 Linux kernel 授权问题漏洞 — kernel 6.7 -2020-12-15
CVE-2020-28215 Schneider Electric Easergy T300 安全漏洞 — Easergy T300 (firmware 2.7 and older) 9.8 -2020-12-11
CVE-2020-27349 aptdaemon performed policykit permissions checks too late — aptdaemon 7.1 -2020-12-09
CVE-2020-25711 Red Hat Infinispan 访问控制错误漏洞 — infinispan 8.1 -2020-12-03
CVE-2020-26212 Any GLPI CalDAV calendars is read-only for every authenticated user — glpi 7.7 High2020-11-25
CVE-2020-26231 Bypass of fix for CVE-2020-15247, Twig sandbox escape — october 5.2 Medium2020-11-23
CVE-2020-15247 Twig Sandbox Escape by authenticated users with access to editing CMS templates when safemode is enabled. — october 5.2 Medium2020-11-23
CVE-2020-10746 Red Hat Infinispan 安全漏洞 — Infinispan 7.8 -2020-10-19
CVE-2020-3400 Cisco IOS XE Software Web UI Authorization Bypass Vulnerability — Cisco IOS XE Software 8.8 -2020-09-24
CVE-2020-14306 Red Hat OpenShift Service Mesh istio-rhel8-operator 安全漏洞 — openshift-service-mesh/istio-rhel8-operator 8.8 -2020-09-16
CVE-2020-14520 Inductive Automation Ignition 安全漏洞 — Ignition 8 7.5 -2020-07-31
CVE-2020-14491 OpenClinic GA 安全漏洞 — OpenClinic GA 6.5 -2020-07-20
CVE-2020-5368 Dell EMC VxRail 安全漏洞 — VxRail 9.8 Critical2020-07-06
CVE-2020-1996 PAN-OS: Panorama management server log injection — PAN-OS 5.3 Medium2020-05-13
CVE-2020-10689 Eclipse Che 安全漏洞 — Eclipse Che 6.4 Medium2020-04-03
CVE-2019-18581 Dell EMC Data Protection Advisor 安全漏洞 — Data Protection Advisor 7.2 -2020-03-18
CVE-2020-5228 Opencast allows unauthorized public access via OAI-PMH — opencast 7.6 High2020-01-30
CVE-2019-14822 ibus 安全漏洞 — ibus 7.1 -2019-11-25
CVE-2019-13547 Advantech WISE-PaaS/RMM 访问控制错误漏洞 — Advantech WISE-PaaS/RMM 9.8 -2019-10-31
CVE-2019-10184 Red Hat Undertow 信息泄露漏洞 — undertow 5.3 -2019-07-25
CVE-2019-6580 Siemens Siveillance VMS 授权问题漏洞 — Siveillance VMS 2017 R2 9.8 -2019-06-12
CVE-2019-3886 Red Hat libvirt 信息泄露漏洞 — libvirt 5.4 -2019-04-04
CVE-2019-3879 ovirt REST API 授权问题漏洞 — ovirt-engine 8.1 -2019-03-25
CVE-2017-2662 Foreman 安全漏洞 — foreman katello plugin 4.3 -2018-08-22
CVE-2017-2652 CloudBees Jenkins Distributed Fork插件安全漏洞 — DistFork Jenkins plugin 8.8 -2018-07-27
CVE-2017-7530 Red Hat CloudForms Management Engine 权限许可和访问控制漏洞 — cfme 8.8 -2018-07-26
CVE-2011-4183 open build service allows anyone to upload rpms — open build service 9.8 -2018-06-13
CVE-2013-3703 No write permission check in change_role command — Open Build Service 6.5 -2018-06-08
CVE-2018-7688 Open Build Service accepts arbitrary reviews — Open Build Service 6.5 -2018-06-07
CVE-2018-7689 Open Build Service arbitrary package modification — Open Build Service 6.5 -2018-06-07

Vulnerabilities classified as CWE-862 (授权机制缺失) represent 5581 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.