SRC-2021-0007 : NetMotion Mobility Server MvcUtil valueStringToObject Deserialization of Untrusted Data Remote Code Execution Vulnerability
CVE ID: CVE-2021-26914
CVSS Score: 9.8, (/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Vendors: NetMotion
Affected Products: NetMotion Mobility Server
This vulnerability allows remote attackers execute arbitrary code on affected installations of NetMotion Mobility Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the MvcUtil class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute arbitrary code in the context of SYSTEM.
NetMotion has issued an update to correct this vulnerability. More details can be found at: https://www.netmotionsoftware.com/security-advisories/security-vulnerability-in-mobility-web-server-november-19-2020
2020-11-19 – Sent to Beyond Security
2021-02-08 – Coordinated public release of advisory
Credit: This vulnerability was discovered by Steven Seeley (mr_me) of Qihoo 360 Vulcan Team
Source Incite would like to acknowledge Beyond Security’s SSD program for the help with co-ordination of this vulnerability. More details can be found on their blog at https://ssd-disclosure.com/ssd-advisory-netmotion-mobility-server-multiple-deserialization-of-untrusted-data-lead-to-rce/.