Additional information is available to address the Parallels Plesk Control Panel remote SQL injection vulnerability.
Parallels Plesk Panel Control Panel remote administration software contains a vulnerability that could allow an unauthenticated, remote attacker to conduct SQL injection attacks against the targeted system.
The vulnerability is due to insufficient validation of user-supplied POST requests by the affected site administration software. An unauthenticated, remote attacker could exploit the vulnerability by transmitting crafted SQL POST requests to the system. Successful exploitation could allow the attacker to gain unauthorized access to the hosting server and make alterations to the site contents.
Parallels has confirmed the vulnerability and released patches.
The following Parallels products are vulnerable:
Plesk versions 8.4 and prior for Windows and Linux/Unix
Plesk version 8.6 for Windows and Linux
Plesk versions 9.3 and prior for Windows and Linux/Unix
Plesk version 9.5 for Windows
Plesk 9.5.4 for Linux
Plesk versions 10.2 and prior for Linux/Unix
Plesk 10.0.1 for Linux and Windows
Plesk 10.1.1 for Linux and Windows
Plesk 10.2.0 for Linux and Windows
Plesk 10.3.1 for Linux and Windows
A successful exploit of the vulnerability could allow the attacker to cause a complete compromise of the server hosting the affected application.
After applying the patches, users are advised to reset all the account passwords because there may be a possibility that the attacker could maintain a backdoor channel to the system and use the passwords. If an affected site is hosted with a provider that uses Plesk for site
administration, users are advised to reconfigure the administration
accounts and reset all account passwords.
Because the attacker needs to transmit SQL queries to the system, access to trusted internal network would be needed to send these requests. The access requirement could limit the likelihood of a successful attack.
Reports indicate this vulnerability is being actively exploited in the wild as part of the Darkleech toolkit.
Parallels has released a security advisory at the following link: 113321
An unauthenticated, remote attacker could exploit the vulnerability to gain unauthorized access to the website hosting server. The attacker could use this access to disclose sensitive information that is contained in the underlying database of the site. The attacker could also alter user accounts, files, and the security of a targeted site.
The vulnerability is in the agent.php interface Application Protocol Interface (API) due to insufficient validation of user-supplied POST requests. The affected software allows remote administration of a website and, due to this flaw, requests embedded with SQL queries could allow SQL injection attacks against the hosting server.
An unauthenticated, remote attacker could exploit the vulnerability by transmitting crafted SQL queries to the targeted system. When processed, the queries could allow the attacker to gain unauthorized access to the Plesk server software with administrative privileges. The attacker could perform further attacks with these administrative privileges.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to monitor the affected systems.
Customers are advised to apply the respective patches as specified in the security advisory at the following link: 113321
Version 1, February 27, 2012, 7:37 PM: Parallels Plesk Panel software contains a vulnerability that could allow an unauthenticated, remote attacker to conduct SQL injections attacks against the targeted system. Patches are available.
The security vulnerability applies to the following combinations of products.
8.0 Base | 9.0 Base | 10.0 Base
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