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CWE-22 对路径名的限制不恰当(路径遍历) 类漏洞列表 5207

CWE-22 对路径名的限制不恰当(路径遍历) 类弱点 5207 条 CVE 漏洞汇总，含 AI 中文分析。

CWE-22 属于路径遍历漏洞，指程序未正确过滤外部输入中的特殊字符，导致构造的文件路径突破受限目录限制。攻击者常利用“../”等序列访问系统敏感文件，窃取数据或执行恶意操作。开发者应严格校验输入，使用白名单机制限制合法字符，并采用绝对路径或规范化处理，确保最终解析路径始终位于预期目录内，从而有效防御此类风险。

MITRE CWE 官方描述
CWE：CWE-22 对受限目录的路径名限制不当（'Path Traversal'） 英文：产品使用外部输入来构造一个路径名，该路径名旨在标识位于受限父目录下的文件或目录，但产品未能正确中和路径名中可能导致路径名解析到受限目录之外位置的特殊元素。 许多文件操作旨在在受限目录内进行。通过使用“..”和“/”分隔符等特殊元素，攻击者可以逃逸出受限位置，以访问系统中其他位置的文件或目录。最常见的特殊元素之一是“../”序列，在大多数现代操作系统中，它被解释为当前位置的父目录。这被称为相对路径遍历（relative path traversal）。路径遍历（Path Traversal）也涵盖使用绝对路径名（如“/usr/local/bin”）来访问意外文件的情况。这被称为绝对路径遍历（absolute path traversal）。
常见影响 (4)
Integrity, Confidentiality, Availability Execute Unauthorized Code or Commands
The attacker may be able to create or overwrite critical files that are used to execute code, such as programs or libraries.
Integrity Modify Files or Directories
The attacker may be able to overwrite or create critical files, such as programs, libraries, or important data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, appending a new account at the end of a password file may allow …
Confidentiality Read Files or Directories
The attacker may be able read the contents of unexpected files and expose sensitive data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, by reading a password file, the attacker could conduct brute force password guessing a…
Availability DoS: Crash, Exit, or Restart
The attacker may be able to overwrite, delete, or corrupt unexpected critical files such as programs, libraries, or important data. This may prevent the product from working at all and in the case of protection mechanisms such as authentication, it has the potential to lock out product users.
缓解措施 (5)
Implementation Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range…
Architecture and Design For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Implementation Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked. Use a built-in path canonicalization function (such as realpath(…
Architecture and Design Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Operation Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
Effectiveness: Moderate
代码示例 (2)
The following code could be for a social networking application in which each user's profile information is stored in a separate file. All files are stored in a single directory.
my $dataPath = "/users/cwe/profiles"; my $username = param("user"); my $profilePath = $dataPath . "/" . $username; open(my $fh, "<", $profilePath) || ExitError("profile read error: $profilePath"); print "<ul>\n"; while (<$fh>) { print "<li>$_</li>\n"; } print "</ul>\n";
Bad · Perl
../../../etc/passwd
Attack
In the example below, the path to a dictionary file is read from a system property and used to initialize a File object.
String filename = System.getProperty("com.domain.application.dictionaryFile"); File dictionaryFile = new File(filename);
Bad · Java
CVE ID 标题 CVSS 风险等级 Published
CVE-2021-32527 QSAN Storage Manager 路径遍历漏洞 — Storage Manager 7.5 High 2021-07-07
CVE-2021-32516 QSAN Storage Manager 路径遍历漏洞 — Storage Manager 7.5 High 2021-07-07
CVE-2021-24375 WordPress 插件路径遍历漏洞 — Motor 9.8 - 2021-07-06
CVE-2021-28588 Adobe RoboHelp 路径遍历漏洞 — RoboHelp Server 8.8 High 2021-06-28
CVE-2021-28584 Adobe Magento 路径遍历漏洞 — Magento Commerce 5.4 Medium 2021-06-28
CVE-2021-21102 Adobe Illustrator 路径遍历漏洞 — Illustrator 8.8 High 2021-06-28
CVE-2021-21090 Adobe Incopy 路径遍历漏洞 — InCopy 8.8 High 2021-06-28
CVE-2021-29087 Synology DiskStation Manager 路径遍历漏洞 — DiskStation Manager (DSM) 7.5 High 2021-06-23
CVE-2021-32674 Zope 路径遍历漏洞 — Zope 8.8 High 2021-06-08
CVE-2021-32662 Techdocs-common 路径遍历漏洞 — backstage 6.5 Medium 2021-06-03
CVE-2021-29091 Synology Photo Station 路径遍历漏洞 — Synology Photo Station 7.7 High 2021-06-02
CVE-2021-33182 Synology DiskStation Manager 路径遍历漏洞 — Synology DiskStation Manager (DSM) 5.0 Medium 2021-06-01
CVE-2021-33183 Docker 路径遍历漏洞 — Synology Docker 7.9 High 2021-06-01
CVE-2021-29088 Synology DiskStation Manager 路径遍历漏洞 — Synology DiskStation Manager (DSM) 7.8 High 2021-06-01
CVE-2021-29492 Envoyproxy 路径遍历漏洞 — envoy 8.1 High 2021-05-28
CVE-2021-32643 http4s 路径遍历漏洞 — http4s 5.8 Medium 2021-05-27
CVE-2009-3721 ytnef 路径遍历漏洞 — ytnef 7.8 - 2021-05-26
CVE-2021-22736 Schneider Electric homeLYnk和spaceLYnk 路径遍历漏洞 — homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior 7.5 - 2021-05-26
CVE-2021-21001 WAGO 路径遍历漏洞 — Series PFC200 Controller 9.1 Critical 2021-05-24
CVE-2021-32633 Zope 路径遍历漏洞 — Zope 6.8 Medium 2021-05-21
CVE-2021-27461 Emerson Rosemount X-STREAM Gas Analyzer 路径遍历漏洞 — Emerson Rosemount X-STREAM Gas Analyzer 7.5 - 2021-05-20
CVE-2021-1532 Cisco TelePresence Collaboration Endpoint 路径遍历漏洞 — Cisco TelePresence Endpoint Software (TC/CE) 6.5 Medium 2021-05-06
CVE-2021-31421 Corel Parallels Desktop 路径遍历漏洞 — Desktop 7.9 - 2021-04-29
CVE-2020-36321 Vaadin flow 路径遍历漏洞 — Vaadin 5.9 Medium 2021-04-23
CVE-2021-24242 WordPress 路径遍历漏洞 — Tutor LMS – eLearning and online course solution 5.5 - 2021-04-22
CVE-2020-25243 Siemens LOGO! Soft Comfort 路径遍历漏洞 — LOGO! Soft Comfort 5.1 Medium 2021-04-22
CVE-2021-0231 Juniper Networks Junos OS 路径遍历漏洞 — Junos OS 6.5 Medium 2021-04-22
CVE-2021-27278 Corel Parallels Desktop 路径遍历漏洞 — Desktop 8.2 - 2021-04-22
CVE-2021-20023 Sonicwall On-premise Email 路径遍历漏洞 — Email Security 4.9 - 2021-04-20
CVE-2021-22720 施耐德 Schneider Electric C-Bus Toolkit 路径遍历漏洞 — C-Bus Toolkit V1.15.7 and prior 7.2 - 2021-04-13

CWE-22（对路径名的限制不恰当(路径遍历)） 是常见的弱点类别，本平台收录该类弱点关联的 5207 条 CVE 漏洞。