Vulnerability CVE-2020-25697
Published: 2021-05-26

Description:
A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an attacker to take control of an X application by impersonating the server it is expecting to connect to.

Type:

CWE-306

 (Missing Authentication for Critical Function)

CVSS2 => (AV:L/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.4/10
6.4/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
X.org -> X server 

 References:
http://www.openwall.com/lists/oss-security/2020/11/09/3
http://www.openwall.com/lists/oss-security/2020/11/09/3
,
https://seclists.org/oss-sec/2020/q4/105
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E
https://bugzilla.redhat.com/show_bug.cgi?id=1895295
,
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