CVE-2020-13699
A malicious website could launch TeamViewer with arbitrary parameters, as demonstrated by a teamviewer10: --play URL.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 25.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI handlers. A malicious website could launch TeamViewer with arbitrary parameters, as demonstrated by a teamviewer10: --play URL. An attacker could force a victim to send an NTLM authentication request and either relay the request or capture the hash for offline password cracking. This affects teamviewer10, teamviewer8, teamviewerapi, tvchat1, tvcontrol1, tvfiletransfer1, tvjoinv8, tvpresent1, tvsendfile1, tvsqcustomer1, tvsqsupport1, tvvideocall1, and tvvpn1. The issue is fixed in 8.0.258861, 9.0.258860, 10.0.258873, 11.0.258870, 12.0.258869, 13.2.36220, 14.2.56676, 14.7.48350, and 15.8.3.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 25.79% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-88
- Affected
- teamviewer/teamviewer
- Source
- cve@mitre.org
References
- https://community.teamviewer.com/t5/Announcements/Statement-on-CVE-2020-13699/td-p/98448Vendor Advisory
- https://jeffs.sh/CVEs/CVE-2020-13699.txtThird Party Advisory
- https://community.teamviewer.com/t5/Announcements/Statement-on-CVE-2020-13699/td-p/98448Vendor Advisory
- https://jeffs.sh/CVEs/CVE-2020-13699.txtThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.