Directory traversal vulnerability in Zend Platform 2.2.1 and earlier allows remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in the final component of the PHP session identifier (PHPSESSID). NOTE: in some cases, this issue can be leveraged to perform direct static code injection.

Multiple buffer overflows in the (a) Session Clustering Daemon and the (b) modcluster module in the Zend Platform 2.2.1 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a (1) empty or (2) crafted PHP session identifier (PHPSESSID).

inimodifier (sgid-zendtech) in Zend Platform 2.2.3 and earlier allows local users to modify the system php.ini file by editing a copy of php.ini file using the -f parameter, and then performing a symlink attack using the directory that contains the attacker-controlled php.ini file, and linking this directory to /usr/local/Zend/etc.

Zend Platform 2.2.3 and earlier has incorrect ownership for scd.sh and certain other files, which allows local users to gain root privileges by modifying the files. NOTE: this only occurs when safemode and openbasedir are disabled; other settings require leverage for other vulnerabilities.