Privilege Escalation Vulnerability in Xorg-x11-server by Vendor X
CVE-2020-25697

7HIGH

Key Information:

Vendor

X.org

Status
Xorg-x11-server
Vendor
CVE Published:
26 May 2021

What is CVE-2020-25697?

A privilege escalation flaw has been identified in Xorg-x11-server, stemming from the lack of mutual authentication for X11 clients. This weakness enables a malicious actor to impersonate the intended server, subsequently gaining unauthorized control over X applications. Hence, it is crucial for users and administrators to implement effective security measures to mitigate the risk associated with this vulnerability.

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Affected Version(s)

xorg-x11-server All

References

http://www.openwall.com/lists/oss-security/2020/11/09/3
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4...
mailing-listx_refsource_MLIST
https://seclists.org/oss-sec/2020/q4/105
x_refsource_MISC

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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