Vulnerability Details : CVE-2022-25277
Drupal core sanitizes filenames with dangerous extensions upon upload (reference: SA-CORE-2020-012) and strips leading and trailing dots from filenames to prevent uploading server configuration files (reference: SA-CORE-2019-010). However, the protections for these two vulnerabilities previously did not work correctly together. As a result, if the site were configured to allow the upload of files with an htaccess extension, these files' filenames would not be properly sanitized. This could allow bypassing the protections provided by Drupal core's default .htaccess files and possible remote code execution on Apache web servers. This issue is mitigated by the fact that it requires a field administrator to explicitly configure a file field to allow htaccess as an extension (a restricted permission), or a contributed module or custom code that overrides allowed file uploads.
Vulnerability category: Execute code
Exploit prediction scoring system (EPSS) score for CVE-2022-25277
Probability of exploitation activity in the next 30 days: 0.13%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 47 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-25277
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
CWE ids for CVE-2022-25277
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The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-25277
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https://www.drupal.org/sa-core-2022-014
Drupal core - Critical - Arbitrary PHP code execution - SA-CORE-2022-014 | Drupal.orgVendor Advisory
Products affected by CVE-2022-25277
- cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
- cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*