CVE-2020-25507
An incorrect permission assignment during the installation script of TeamworkCloud 18.0 thru 19.0 allows a local unprivileged attacker to execute arbitrary code as root.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An incorrect permission assignment during the installation script of TeamworkCloud 18.0 thru 19.0 allows a local unprivileged attacker to execute arbitrary code as root. During installation, the user is instructed to set the system enviroment file with world writable permissions (0777 /etc/environment). Any local unprivileged user can execute arbitrary code simply by writing to /etc/environment, which will force all users, including root, to execute arbitrary code during the next login or reboot. In addition, the entire home directory of the twcloud user at /home/twcloud is recursively given world writable permissions. This allows any local unprivileged attacker to execute arbitrary code, as twcloud. This product was previous named Cameo Enterprise Data Warehouse (CEDW).
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- 3ds/teamwork cloud
- Source
- cve@mitre.org
References
- https://community.nomagic.com/finding-and-fixing-wrong-file-permission-twc-installation-t7165.html
- https://docs.nomagic.com/display/TWCloud190/Installation+on+Linux+using+scriptsThird Party Advisory
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-002.mdExploit, Third Party Advisory
- https://sick.codes/finding-a-vulnerability-in-teamwork-cloud-server-nomagic-3ds-which-is-used-by-gov-enterprise-to-design-rockets-missiles-and-satellites
- https://sick.codes/sick-2020-002/
- https://web.archive.org/web/20201219095507/https://docs.nomagic.com/display/TWCloud185SP1/Installation+on+Centos+7.
- https://web.archive.org/web/20201219155833/https://docs.nomagic.com/pages/viewpage.action?pageId=20846937
- https://community.nomagic.com/finding-and-fixing-wrong-file-permission-twc-installation-t7165.html
- https://docs.nomagic.com/display/TWCloud190/Installation+on+Linux+using+scriptsThird Party Advisory
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-002.mdExploit, Third Party Advisory
- https://sick.codes/finding-a-vulnerability-in-teamwork-cloud-server-nomagic-3ds-which-is-used-by-gov-enterprise-to-design-rockets-missiles-and-satellites
- https://sick.codes/sick-2020-002/
- https://web.archive.org/web/20201219095507/https://docs.nomagic.com/display/TWCloud185SP1/Installation+on+Centos+7.
- https://web.archive.org/web/20201219155833/https://docs.nomagic.com/pages/viewpage.action?pageId=20846937
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.