Vulnerability identifier: #VU27102
Vulnerability risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-321
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
TeamViewer
Client/Desktop applications /
Other client software
Vendor: TeamViewer
Description
The vulnerability allows a local user to decrypt stored credentials.
The vulnerability exists due to application is using the same AES key for all installations to encrypt stored proxy and options password. A local user with access to he system can use the hard-coded key to decrypt credentials.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
TeamViewer: 8.0.226330 - 14.7.224254
External links
http://community.teamviewer.com/t5/Announcements/Specification-on-CVE-2019-18988/td-p/82264
http://community.teamviewer.com/t5/Knowledge-Base/tkb-p/Knowledgebase?threadtype=label&labels=Security
http://twitter.com/Blurbdust/status/1224212682594770946?s=20
http://whynotsecurity.com/blog/teamviewer/
http://community.teamviewer.com/t5/Change-Logs/Windows-v14-7-39531-Full-Change-Log/td-p/90813
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.