Substitution Encoding Issue in mod_rewrite Allows Execution of Scripts in Directories
CVE-2024-38474

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Http Server
Vendor
CVE Published:
1 July 2024

What is CVE-2024-38474?

A substitution encoding issue exists in mod_rewrite for Apache HTTP Server versions 2.4.59 and earlier, which may allow an attacker to execute scripts in directories that are permitted by the server configuration but are not directly accessible through any URL. This vulnerability can lead to the unauthorized disclosure of scripts that are intended to be executed only as CGI. To mitigate this issue, users should upgrade to Apache HTTP Server version 2.4.60 or later. In addition, certain RewriteRules that would capture and substitute unsafely will be prohibited unless the rewrite flag 'UnsafeAllow3F' is specified.

Affected Version(s)

Apache HTTP Server 2.4.0 <= 2.4.59

References

https://httpd.apache.org/security/vulnerabilities_24.html
vendor-advisory
https://security.netapp.com/advisory/ntap-20240712-0001/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Orange Tsai (@orange_8361) from DEVCORE
.
CVE-2024-38474 : Substitution Encoding Issue in mod_rewrite Allows Execution of Scripts in Directories