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7.2
CVSSv2

CVE-2022-27502

Published: 10/06/2022 Updated: 17/06/2022
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
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Vulnerability Summary

RealVNC VNC Server 6.9.0 up to and including 5.1.0 for Windows allows local privilege escalation because an installer repair operation executes %TEMP% files as SYSTEM.

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realvnc vnc_server

Github Repositories

https://github.com/alirezac0/CVE-2022-27502

Exploit of RealVNC VNC Server

RealVNC server up to 690 DLL Hijacking Exploit (CVE-2022-27502) You can use pre-compiled version (64-bit) of it from HERE Copy it to %TEMP% and initiate a repair of RealVNC Server from add or remove programs It will write the output of whoami command in %TEMP%\outputtxt If you want to change the executed command, change line 191 of dllmaincpp and recompile it

References

NVD-CWE-noinfohttps://realvnc.comhttps://help.realvnc.com/hc/en-us/articles/360002478311-Are-there-any-known-security-vulnerabilities-#cve-2008-4770-moderate-%E2%80%94-only-affects-vnc-viewer--0-1https://nvd.nist.govhttps://github.com/alirezac0/CVE-2022-27502
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2022-48654CVE-2024-2757authentication bypassCVE-2024-3194CVE-2024-33640CVE-2024-21111dosinsecure direct object referenceCVE-2024-21345
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