CVE-2020-24046

A sandbox escape issue was discovered in TitanHQ SpamTitan Gateway 7.07. It limits the admin user to a restricted shell, allowing execution of a small number of tools of the operating system. This restricted shell can be bypassed after changing the properties of the user admin in the operating system file /etc/passwd. This file cannot be accessed though the restricted shell, but it can be modified by abusing the Backup/Import Backup functionality of the web interface. An authenticated attacker would be able to obtain the file /var/tmp/admin.passwd after executing a Backup operation. This file can be manually modified to change the GUID of the user to 0 (root) and change the restricted shell to a normal shell /bin/sh. After the modification is done, the file can be recompressed to a .tar.bz file and imported again via the Import Backup functionality. The properties of the admin user will be overwritten and a root shell will be granted to the user upon the next successful login.

Link	Resource
https://sensepost.com/blog/2020/clash-of-the-spamtitan/	Exploit Third Party Advisory
https://www.titanhq.com	Vendor Advisory
https://github.com/felmoltor	Third Party Advisory
https://twitter.com/felmoltor	Third Party Advisory

Configuration 1

cpe:2.3:a:titanhq:spamtitan:7.07:*:*:*:*:*:*:*

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Published : 2020-09-17 05:15

Updated : 2020-09-24 01:46

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NVD link : CVE-2020-24046

Mitre link : CVE-2020-24046

No products.

CWE-269