Описание
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
A flaw was found in httpd. When configured as a forward proxy using the mod_proxy_ftp module, the server improperly validates the network address returned in a File Transfer Protocol (FTP) passive mode (PASV) response. A malicious FTP server can exploit this flaw by returning a crafted reply, forcing the proxy to establish a data connection to an arbitrary third-party host. This issue may allow an attacker to initiate unauthorized network connections or probe internal systems that are otherwise inaccessible.
Меры по смягчению последствий
Disable the mod_proxy_ftp module or ensure forward proxying is disabled in the Apache HTTP Server configuration.
- Comment out the mod_proxy_ftp module load line in
/etc/httpd/conf.modules.d/00-proxy.conf:
- Ensure forward proxying is turned off in
/etc/httpd/conf/httpd.conf:
- Reload the httpd service to apply changes:
Caveat: Disabling mod_proxy_ftp terminates the ability of httpd to proxy FTP requests. Warning: Reloading or restarting the httpd service will briefly affect active connections while configuration changes are reloaded.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | httpd | Affected | ||
| Red Hat Enterprise Linux 6 | httpd | Not affected | ||
| Red Hat Enterprise Linux 7 | httpd | Affected | ||
| Red Hat Enterprise Linux 8 | httpd:2.4/httpd | Affected | ||
| Red Hat JBoss Core Services | jbcs-httpd24-httpd | Fix deferred | ||
| Red Hat Enterprise Linux 9 | httpd | Fixed | RHSA-2026:88229 | 22.10.2026 |
| Red Hat Hardened Images | httpd-main-2.4.69-1.hum1 | Fixed | RHSA-2026:74858 | 02.10.2026 |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apac ...
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
EPSS
5.3 Medium
CVSS3