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CWE-732 (关键资源的不正确权限授予) — Vulnerability Class 447

447 vulnerabilities classified as CWE-732 (关键资源的不正确权限授予). AI Chinese analysis included.

CWE-732 represents a critical access control weakness where software assigns overly permissive security attributes to vital resources, such as files, directories, or registry keys. This misconfiguration allows unintended actors to read or modify data that should remain restricted, often leading to sensitive information disclosure or unauthorized system changes. Attackers typically exploit this by identifying these loose permissions to access confidential data or alter critical configurations, potentially escalating privileges or compromising system integrity. To prevent this, developers must adhere to the principle of least privilege, ensuring resources are accessible only to necessary processes and users. Rigorous code reviews, automated static analysis tools, and strict adherence to secure coding standards help identify and correct improper permission assignments before deployment, thereby safeguarding critical assets against unauthorized access and manipulation.

MITRE CWE Description
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. When a resource is given a permission setting that provides access to a wider range of actors than required, it could lead to the exposure of sensitive information, or the modification of that resource by unintended parties. This is especially dangerous when the resource is related to program configuration, execution, or sensitive user data. For example, consider a misconfigured storage account for the cloud that can be read or written by a public or anonymous user.
Common Consequences (3)
ConfidentialityRead Application Data, Read Files or Directories
An attacker may be able to read sensitive information from the associated resource, such as credentials or configuration information stored in a file.
Access ControlGain Privileges or Assume Identity
An attacker may be able to modify critical properties of the associated resource to gain privileges, such as replacing a world-writable executable with a Trojan horse.
Integrity, OtherModify Application Data, Other
An attacker may be able to destroy or corrupt critical data in the associated resource, such as deletion of records from a database.
Mitigations (5)
ImplementationWhen using a critical resource such as a configuration file, check to see if the resource has insecure permissions (such as being modifiable by any regular user) [REF-62], and generate an error or even exit the software if there is a possibility that the resource could have been modified by an unauthorized party.
Architecture and DesignDivide the software into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully defining distinct user groups, privileges, and/or roles. Map these against data, functionality, and the related resources. Then set the permissions accordingly. This will allow you to maintain more fine-grained control over your resources. [REF-207]
Effectiveness: Moderate
Architecture and Design, OperationRun the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software. OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For ex…
Effectiveness: Limited
Implementation, InstallationDuring program startup, explicitly set the default permissions or umask to the most restrictive setting possible. Also set the appropriate permissions during program installation. This will prevent you from inheriting insecure permissions from any user who installs or runs the program.
Effectiveness: High
System ConfigurationFor all configuration files, executables, and libraries, make sure that they are only readable and writable by the software's administrator.
Effectiveness: High
Examples (2)
The following code sets the umask of the process to 0 before creating a file and writing "Hello world" into the file.
#define OUTFILE "hello.out" umask(0); FILE *out; /* Ignore link following (CWE-59) for brevity */ out = fopen(OUTFILE, "w"); if (out) { fprintf(out, "hello world!\n"); fclose(out); }
Bad · C
-rw-rw-rw- 1 username 13 Nov 24 17:58 hello.out
Result
This code creates a home directory for a new user, and makes that user the owner of the directory. If the new directory cannot be owned by the user, the directory is deleted.
function createUserDir($username){ $path = '/home/'.$username; if(!mkdir($path)){ return false; } if(!chown($path,$username)){ rmdir($path); return false; } return true; }
Bad · PHP
CVE IDTitleCVSSSeverityPublished
CVE-2019-18243 GE Digital HMI/SCADA iFIX 权限许可和访问控制问题漏洞 — HMI/SCADA iFIX 5.5 -2021-02-18
CVE-2019-18255 GE Digital HMI/SCADA iFIX 权限许可和访问控制问题漏洞 — HMI/SCADA iFIX 5.5 -2021-02-18
CVE-2020-8029 skuba: Insecure handling of private key — SUSE CaaS Platform 4.5 2.9 Low2021-02-11
CVE-2020-26196 DELL EMC PowerScale 安全漏洞 — PowerScale OneFS 5.5 Medium2021-02-09
CVE-2020-26194 DELL EMC PowerScale 权限许可和访问控制问题漏洞 — PowerScale OneFS 7.0 High2021-02-09
CVE-2021-22850 HGiga OAKloud Portal - Security Misconfiguration — OAKSv20 OAKlouds-document_v3 5.3 Medium2021-01-19
CVE-2020-25191 National Instruments Compactrio 授权问题漏洞 — CompactRIO 6.5 -2020-12-11
CVE-2020-7337 Incorrect Permission Assignment for Critical Resource — VirusScan Enterprise (VSE) 6.5 Medium2020-12-09
CVE-2020-10762 Red Hat OpenShift Container Storage 日志信息泄露漏洞 — gluster-block 5.5 -2020-11-24
CVE-2020-15708 Libvirt Service Arbitrary File Write Privilege Escalation Vulnerability — libvirt 9.3 Critical2020-11-06
CVE-2020-10140 Acronis True Image 访问控制错误漏洞 — True Image 7.8 High2020-10-21
CVE-2020-17414 Adobe Reader和Foxit Reader 安全漏洞 — Reader 7.8 -2020-10-13
CVE-2020-17415 mPDF和Foxit PhantomPDF 安全漏洞 — PhantomPDF 7.8 -2020-10-13
CVE-2020-16202 Advantech WebAccess Node 安全漏洞 — WebAccess Node 7.8 -2020-09-22
CVE-2020-10781 Linux kernel 资源管理错误漏洞 — kernel 5.5 Medium2020-09-16
CVE-2020-7314 Privilege Escalation vulnerability in McAfee DXL for Mac — McAfee DXL for Mac shipped with MA 8.2 High2020-09-10
CVE-2020-5369 Dell EMC Isilon OneFS 安全漏洞 — Isilon OneFS 8.8 High2020-09-02
CVE-2020-17402 Corel Parallels Desktop 安全漏洞 — Desktop 6.5 -2020-08-25
CVE-2020-5417 Cloud Controller may allow developers to claim sensitive routes — CAPI 8.1 -2020-08-21
CVE-2020-5385 Dell Encryption和Dell Endpoint Security Suite 安全漏洞 — Dell Encryption Enterprise 6.7 Medium2020-08-18
CVE-2020-5371 Dell EMC Isilon OneFS和EMC PowerScale 安全漏洞 — Isilon OneFS 8.0 High2020-07-06
CVE-2020-12041 Baxter Spectrum WBM 安全漏洞 — Baxter Sigma Spectrum Infusion Pumps 9.4 -2020-06-29
CVE-2020-5358 Dell Encryption和Dell Endpoint Security Suite 安全漏洞 — Dell Encryption Enterprise 6.7 Medium2020-06-15
CVE-2020-8473 ABB System 800xA Weak File Permissions - ABB System 800xA Base — System 800xA Base 7.3 High2020-04-28
CVE-2020-8472 ABB System 800xA Weak File Permissions - different products — OPC Server for AC 800M 5.5 Medium2020-04-28
CVE-2020-10699 Linux targetcli-fb 访问控制错误漏洞 — targetcli 7.8 High2020-04-15
CVE-2020-10642 Rockwell Automation RSLinx Classic 安全漏洞 — Rockwell Automation RSLinx Classic versions 4.1.00 and prior 7.8 -2020-04-13
CVE-2020-10883 TP-Link Archer A7 AC1750 安全漏洞 — Archer A7 7.8 -2020-03-25
CVE-2020-1707 Red Hat OpenShift 安全漏洞 — openshift/postgresql-apb 7.0 High2020-03-20
CVE-2020-1709 Red Hat OpenShift 安全漏洞 — openshift/mediawiki 7.0 High2020-03-20

Vulnerabilities classified as CWE-732 (关键资源的不正确权限授予) represent 447 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.