Due to Manage Engine Asset Explorer Agent 1.0.34 not validating HTTPS certificates, an attacker on the network can statically configure their IP address to match the Asset Explorer’s Server IP address. This will allow an attacker to send a NEWSCAN request to a listening agent on the network as well as receive the agent’s HTTP request verifying its authtoken. In httphandler.cpp, the agent reaching out over HTTP is vulnerable to an Integer Overflow, which can be turned into a Heap Overflow allowing for remote code execution as NT AUTHORITY/SYSTEM on the agent machine. The Integer Overflow occurs when receiving POST response from the Manage Engine server, and the agent calling “HttpQueryInfoW” in order to get the “Content-Length” size from the incoming POST request. This size is taken, but multiplied to a larger amount. If an attacker specifies a Content-Length size of 1073741823 or larger, this integer arithmetic will wrap the value back around to smaller integer, then calls “calloc” with this size to allocate memory. The following API “InternetReadFile” will copy the POST data into this buffer, which will be too small for the contents, and cause heap overflow.
zohocorp
CVE-2021-20130
ManageEngine ADManager Plus Build 7111 contains a post-authentication remote code execution vulnerability due to improperly validated file uploads in the PasswordExpiry interface.
CVE-2021-20131
ManageEngine ADManager Plus Build 7111 contains a post-authentication remote code execution vulnerability due to improperly validated file uploads in the Personalization interface.
CVE-2022-47966
Multiple Zoho ManageEngine on-premise products, such as ServiceDesk Plus through 14003, allow remote code execution due to use of Apache xmlsec (aka XML Security for Java) 1.4.1, because the xmlsec XSLT features, by design in that version, make the application responsible for certain security protections, and the ManageEngine applications did not provide those protections.
CVE-2022-47577
** DISPUTED ** An issue was discovered in the endpoint protection agent in Zoho ManageEngine Device Control Plus 10.1.2228.15. Despite configuring complete restrictions on USB pendrives, USB HDD devices, memory cards, USB connections to mobile devices, etc., it is still possible to bypass the USB restrictions by making use of a virtual machine (VM). This allows a file to be exchanged outside the laptop/system. VMs can be created by any user (even without admin rights). The data exfiltration can occur without any record in the audit trail of Windows events on the host machine. NOTE: the vendor’s position is “it’s not a vulnerability in our product.”
CVE-2022-47578
** DISPUTED ** An issue was discovered in the endpoint protection agent in Zoho ManageEngine Device Control Plus 10.1.2228.15. Despite configuring complete restrictions on USB pendrives, USB HDD devices, memory cards, USB connections to mobile devices, etc., it is still possible to bypass the USB restrictions by booting into Safe Mode. This allows a file to be exchanged outside the laptop/system. Safe Mode can be launched by any user (even without admin rights). Data exfiltration can occur, and also malware might be introduced onto the system. NOTE: the vendor’s position is “it’s not a vulnerability in our product.”