SB2020093035 - Red Hat Enterprise Linux 7 update for httpd
Published: September 30, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Security restrictions bypass (CVE-ID: CVE-2017-15715)
The vulnerability allows a remote attacker to bypass security restrictions on the target system.The weakness exists on systems that allow uploading of user-specified filenames due to the '<FilesMatch>' expression may not correctly match characters in a filename. A remote attacker can supply a specially crafted filename to potentially bypass security controls that use the '<FilesMatch>' directive.
2) Improper access control (CVE-ID: CVE-2018-1283)
The vulnerability allows a remote attacker to modify data on the target system.The weakness exists on systems with mod_session configured with SessionEnv on to forward session data to CGI applications due to improper input validation. A remote attacker can send a specially crafted 'Session' header value to potentially modify mod_session data.
3) Out-of-bounds read (CVE-ID: CVE-2018-1303)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in Apache HTTPD mod_cache_socache due to improper validation of user-supplied input. A remote attacker can send a specially crafted HTTP request header, trigger an out-of-bounds memory read error in mod_cache_socache and cause the target service to crash.
4) Input validation error (CVE-ID: CVE-2019-10098)
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to incorrect handling of encoded line break characters within rewrite rules. A remote attacker can send a specially crafted HTTP request and potentially bypass security restrictions.
5) Open redirect (CVE-ID: CVE-2020-1927)
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data in some "mod_rewrite" configurations. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
6) Use of Uninitialized Variable (CVE-ID: CVE-2020-1934)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the "mod_proxy_ftp" may use uninitialized memory when proxying to a malicious FTP server. A remote attacker can gain unauthorized access to sensitive information on the target system.
Remediation
Install update from vendor's website.