SB2012061401 - Multiple vulnerabilities in HP-UX Apache Web Server running PHP
Published: June 14, 2012 Updated: April 28, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2011-4153)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.
2) Resource management error (CVE-ID: CVE-2012-0830)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The php_register_variable_ex function in php_variables.c in PHP 5.3.9 allows remote attackers to execute arbitrary code via a request containing a large number of variables, related to improper handling of array variables. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-4885.
3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-0883)
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
envvars (aka envvars-std) in the Apache HTTP Server before 2.4.2 places a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse DSO in the current working directory during execution of apachectl.
4) Input validation error (CVE-ID: CVE-2012-1172)
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.
5) OS command injection (CVE-ID: CVE-2012-1823)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to error when parsing QUERY_STRING parameters within PHP-CGI-based application (sapi/cgi/cgi_main.c). A remote attacker can send specially crafted HTTP request with query string without the "=" (equals sign) character, inject and execute arbitrary OS commands on vulnerable system with privileges of the web server.
Successful exploitation of the vulnerability results in denial of service or arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
6) OS command injection (CVE-ID: CVE-2012-2311)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to error when parsing QUERY_STRING parameters within PHP-CGI-based application (sapi/cgi/cgi_main.c). A remote attacker can send specially crafted HTTP request with query string, contain a %3D sequence but no = (equals sign) character, inject and execute arbitrary OS commands on vulnerable system with privileges of the web server.
Successful exploitation of the vulnerability results in denial of service or arbitrary code execution on the vulnerable system.
This vulnerability is a result of an incomplete fix for SB2012050301.
Note: the vulnerability was being actively exploited.
Remediation
Install update from vendor's website.