Medium severity · published Jan 11, 2022
CVE-2021-41767
Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses
6.5
CVSS
1.9%
EPSS
No
On KEV
Description
Apache Guacamole 1.3.0 and older 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GU
Guacamole · Apache
through 1.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41767
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41767
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/11/6
Mailing List
https://lists.apache.org/thread/5l31k4jmzdsfz0xt8osrbl878gb3b7ro
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