SuiteCRM <= 7.11.11 Multiple Phar Deserialization Vulnerabilities
• Software Link:
• Affected Versions:
Version 7.11.11 and prior versions.
• Vulnerabilities Description:
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User input passed through the “backup_dir” parameter when handling the “Backups” action within the “Administration” module is not properly sanitized before being used in a file operation. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code. Successful exploitation of this vulnerability requires a System Administrator account.
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User input passed through the “file_name” parameter when handling the “step3” action within the “Import” module is not properly sanitized before being used in a file operation. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code.
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User input passed through the “load_module_from_dir” parameter when handling the “UpgradeWizard” action within the “Administration” module is not properly sanitized before being used in a file operation. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code. Successful exploitation of this vulnerability requires a System Administrator account.
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User input passed through the “file_name” parameter when handling the “UploadFileCheck” action within the “UpgradeWizard” module is not properly sanitized before being used in a file operation. This can be exploited by malicious users to inject arbitrary PHP objects into the application scope (PHP Object Injection via phar:// stream wrapper), allowing them to carry out a variety of attacks, such as executing arbitrary PHP code. Successful exploitation of this vulnerability would require a System Administrator account. However, due to KIS-2020-04 it could be exploited by any user.
• Solution:
Update to version 7.11.12, 7.10.24, or later.
• Disclosure Timeline:
[19/09/2019] – Vendor notified
[20/09/2019] – Vendor acknowledgement
[12/11/2019] – Vendor contacted again asking for updates, no response
[20/01/2020] – Vendor notified about public disclosure intention, no response
[07/02/2020] – CVE number assigned
[12/02/2020] – Public disclosure
[14/02/2020] – Versions 7.11.12 and 7.10.24 released
• CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2020-8801 to these vulnerabilities.
• Credits:
Vulnerabilities discovered by Egidio Romano.