high CVSS 7.5

CVE-2024-38472·Apache vulnerability

SSRF in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.60 which fixes this issue.  Note: Existing configurations that access UNC paths will have to configure new directive "UNCList" to allow access during request processing.

Severity
high
Software
Apache
Fixed in
2.4.60
Published
2024-07-01

Affected versions

From: 2.4.0

Until: 2.4.60

Fixed in: 2.4.60

How to fix this CVE

Upgrade Apache HTTP Server to version 2.4.60 or later to patch this Server-Side Request Forgery (SSRF) vulnerability on Windows systems. If your configuration uses UNC paths, you must configure the new 'UNCList' directive to maintain access to those resources after upgrading. Test the upgrade in a staging environment first to ensure compatibility with your existing directives and network policies.

sudo dnf update httpd

Defensia detects this vulnerability

How to check if you are affected

  1. Check installed Apache version with: apache2ctl -v (Ubuntu/Debian) or httpd -v (RHEL/CentOS)
  2. Verify if your Apache is running on Windows by checking the platform in the version output and reviewing your system OS
  3. Search Apache access and error logs for suspicious UNC path requests or unusual outbound connections: grep -i 'unc\|\\\\' /var/log/apache2/access.log
  4. After patching, confirm version with apache2ctl -v or httpd -v and verify the UNCList directive is properly configured if you use UNC paths

FAQ

What is CVE-2024-38472?

CVE-2024-38472 is a Server-Side Request Forgery (SSRF) vulnerability in Apache HTTP Server on Windows that allows attackers to trigger NTLM hash leakage by crafting malicious requests that force the server to authenticate to an attacker-controlled SMB server.

Is CVE-2024-38472 being actively exploited?

No, CVE-2024-38472 is not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog and no public exploits are currently available, though the vulnerability has been disclosed.

What versions of Apache are affected by CVE-2024-38472?

Apache HTTP Server versions 2.4.0 through 2.4.59 are vulnerable. Version 2.4.60 and later contain the fix.

How do I check if my server is vulnerable to CVE-2024-38472?

Run httpd -v or apache2ctl -v and check the version number. If it shows 2.4.59 or earlier AND the server is running on Windows, your installation is vulnerable.

Does Defensia detect CVE-2024-38472?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If Apache is installed on a monitored server, CVE-2024-38472 will appear in your dashboard with remediation steps.

Related Apache CVEs

CVE-2024-38474CVSS 9.8Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified.
CVE-2024-38476CVSS 9.8Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.
CVE-2024-38475CVSS 9.1Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected.  Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained.
CVE-2025-23048CVSS 9.1In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
CVE-2025-58098CVSS 8.3Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives. This issue affects Apache HTTP Server before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue.

References

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