Privilege escalation in Skype - #VU10593
Published: February 14, 2018 / Updated: February 15, 2018
Vulnerability identifier: #VU10593
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Skype
Skype
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to insecure .dll loading mechanism when opening files. A local attacker can place a file along with specially crafted DLL in the '[SystemRoot]\Temp\' directory, and execute arbitrary code with system privileges when the Skype update mechanism ('[ProgramFiles]\Skype\Updater\Updater.exe') runs.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.