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CVE-2021-41767: Exposure of Sensitive Information to an Unauthorized Actor

January 11, 2022 (updated January 14, 2022)

Apache Guacamole may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user’s active use of that same connection.

References

  • www.openwall.com/lists/oss-security/2022/01/11/6
  • lists.apache.org/thread/5l31k4jmzdsfz0xt8osrbl878gb3b7ro
  • nvd.nist.gov/vuln/detail/CVE-2021-41767

Code Behaviors & Features

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Affected versions

All versions up to 1.3.0

Fixed versions

  • 1.4.0

Solution

Upgrade to version 1.4.0 or above.

Impact 6.5 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Source file

maven/org.apache.guacamole/guacamole-common/CVE-2021-41767.yml

Spotted a mistake? Edit the file on GitLab.

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