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Security Advisories: GSA_kwCzR0hTQS01M2p4LXZ2ZjktNHgzOM4AAxhX
StaticHandler disclosure of classpath resources on Windows when mounted on a wildcard route
Summary
When running vertx web applications that serve files using StaticHandler
on Windows Operating Systems and Windows File Systems, if the mount point is a wildcard (*
) then an attacker can exfiltrate any class path resource.
Details
When computing the relative path to locate the resource, in case of wildcards, the code:
returns the user input (without validation) as the segment to lookup. Even though checks are performed to avoid escaping the sandbox, given that the input was not sanitized \
are not properly handled and an attacker can build a path that is valid within the classpath.
PoC
https://github.com/adrien-aubert-drovio/vertx-statichandler-windows-traversal-path-vulnerability
Permalink: https://github.com/advisories/GHSA-53jx-vvf9-4x38JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS01M2p4LXZ2ZjktNHgzOM4AAxhX
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: about 1 year ago
CVSS Score: 4.8
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Percentage: 0.00152
EPSS Percentile: 0.51934
Identifiers: GHSA-53jx-vvf9-4x38, CVE-2023-24815
References:
- https://github.com/vert-x3/vertx-web/security/advisories/GHSA-53jx-vvf9-4x38
- https://nvd.nist.gov/vuln/detail/CVE-2023-24815
- https://github.com/vert-x3/vertx-web/commit/9e3a783b1d1a731055e9049078b1b1494ece9c15
- https://github.com/vert-x3/vertx-web/blob/62c0d66fa1c179ae6a4d57344631679a2b97e60f/vertx-web/src/main/java/io/vertx/ext/web/impl/Utils.java#L83
- https://github.com/advisories/GHSA-53jx-vvf9-4x38
Blast Radius: 18.4
Affected Packages
maven:io.vertx:vertx-web
Dependent packages: 575Dependent repositories: 6,717
Downloads:
Affected Version Ranges: >= 4.0.0, < 4.3.8
Fixed in: 4.3.8
All affected versions: 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.7, 4.1.8, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.6, 4.2.7, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7
All unaffected versions: 3.0.0, 3.1.0, 3.2.0, 3.2.1, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.4.0, 3.4.1, 3.4.2, 3.5.0, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.7.0, 3.7.1, 3.8.0, 3.8.1, 3.8.2, 3.8.3, 3.8.4, 3.8.5, 3.9.0, 3.9.1, 3.9.2, 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 3.9.8, 3.9.9, 3.9.10, 3.9.11, 3.9.12, 3.9.13, 3.9.14, 3.9.15, 3.9.16, 4.3.8, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.7, 4.5.8, 4.5.9, 4.5.10, 4.5.11