Vulnerability identifier: #VU48239
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
X.org Server
Server applications /
Other server solutions
Vendor: X.org
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way X.org server handles authentication requests. A local user can impersonate the X.org server and trick the victim into providing credentials to a rouge application under attackers control.
Mitigation
Install update from vendor's website.
Vulnerable software versions
X.org Server: 1.3.0 - 1.91.2
External links
http://seclists.org/oss-sec/2020/q4/105
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.