CVE-2020-6939

Tableau Server installations configured with Site-Specific SAML that allows the APIs to be used by unauthenticated users

published November 23, 2020

CVSS
—
EPSS
2%
Percentile
78.8
In the wild
Unconfirmed
What it is

⚠️ A curious flaw in Tableau Server lets unauthorized users tamper with your SAML settings! Imagine inviting someone into your home who rearranges all your furniture without permission. 🏠 This vulnerability is like a hotel receptionist who checks in guests without verifying their identities, letting anyone walk into any room. Without proper authentication, attackers can configure Site-Specific SAML settings, leading to potentially disastrous consequences. If exploited, a malicious user could take over accounts of legitimate users on that site, making it easier for them to access sensitive data or perform unauthorized actions. The implications could be absolutely devastating for your organization’s security and trustworthiness!

Put simply

This vulnerability is like a hotel receptionist who checks in guests without verifying their identities, letting anyone walk into any room. Without proper authentication, attackers can configure Site-Specific SAML settings, leading to potentially disastrous consequences. CVE-2020-6939 affects Tableau Server installations configured with Site-Specific SAML, allowing unauthenticated users to use the APIs and modify SAML settings, leading to account takeovers for other users on the site.

What to do

If exploited, a malicious user could take over accounts of legitimate users on that site, making it easier for them to access sensitive data or perform unauthorized actions. The implications could be absolutely devastating for your organization’s security and trustworthiness! To protect against this vulnerability, ensure you patch to the latest version of Tableau Server beyond the affected versions. Review your SAML configurations and enforce proper authentication measures to restrict API access. Be proactive! You've got this! With the right steps, you can secure your Tableau Server and keep your data safe. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01841 · 78.8th percentile
Published
2020-11-23T16:16Z
EPSS history
Timeline
  • 23 NOV 16:16Z
    Tableau Server installations configured with Site-Specific SAML that allows the APIs to be used by unauthenticated users
    cvelistv5