Input validation error in UltraVNC - CVE-2010-5248
Published: September 7, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43612
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2010-5248
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ultravnc.sourceforge.net
Affected software:
UltraVNC
UltraVNC
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Untrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a Trojan horse vnclang.dll file in the current working directory, as demonstrated by a directory that contains a .vnc file. NOTE: some of these details are obtained from third party information. Per: http://cwe.mitre.org/data/definitions/426.html 'CWE-426 Untrusted Search Path'
How to mitigate CVE-2010-5248
Install update from vendor's website.