CVE-2024-47252 - CVE House

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Status published Unknown CVE-2024-47252

Apache HTTP Server: mod_ssl error log variable escaping

0 CVSS

Vulnerability Description

Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{varname}x" or "%{varname}c" to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

John Runyon

References

https://httpd.apache.org/security/vulnerabilities_24.html

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Affected Vendor

Apache Software Foundation

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Affected Software

Apache HTTP Server

Vulnerable Versions:

2.4

Timeline

Official Publish: July 10th, 2025

Last Modified: November 4th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.