Vulnerability Details : CVE-2022-41924
Potential exploit
A vulnerability identified in the Tailscale Windows client allows a malicious website to reconfigure the Tailscale daemon `tailscaled`, which can then be used to remotely execute code. In the Tailscale Windows client, the local API was bound to a local TCP socket, and communicated with the Windows client GUI in cleartext with no Host header verification. This allowed an attacker-controlled website visited by the node to rebind DNS to an attacker-controlled DNS server, and then make local API requests in the client, including changing the coordination server to an attacker-controlled coordination server. An attacker-controlled coordination server can send malicious URL responses to the client, including pushing executables or installing an SMB share. These allow the attacker to remotely execute code on the node. All Windows clients prior to version v.1.32.3 are affected. If you are running Tailscale on Windows, upgrade to v1.32.3 or later to remediate the issue.
Vulnerability category: Cross-site request forgery (CSRF)Execute code
Products affected by CVE-2022-41924
- cpe:2.3:a:tailscale:tailscale:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-41924
49.93%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-41924
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.6
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:H |
2.8
|
6.0
|
GitHub, Inc. | |
9.6
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
2.8
|
6.0
|
NIST |
CWE ids for CVE-2022-41924
-
The product does not properly verify that the source of data or communication is valid.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-41924
-
https://tailscale.com/security-bulletins/#ts-2022-004
Security Bulletins · TailscaleVendor Advisory
-
https://emily.id.au/tailscale
CVE-2022-41924 - RCE in Tailscale, DNS Rebinding, and YouExploit;Technical Description;Third Party Advisory
-
https://github.com/tailscale/tailscale/security/advisories/GHSA-vqp6-rc3h-83cp
Tailscale Windows daemon is vulnerable to RCE via CSRF · Advisory · tailscale/tailscale · GitHubThird Party Advisory
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