Input validation error in ultravnc.sourceforge.net UltraVNC



| Updated: 2020-08-11
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2010-5248
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 UltraVNC
Other software / Other software solutions

Vendor ultravnc.sourceforge.net

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Input validation error

EUVDB-ID: #VU43612

Risk: High

CVSSv4.0: 6.1 [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 - Improper input validation

Exploit availability: No

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'

Mitigation

Install update from vendor's website.

Vulnerable software versions

UltraVNC: 1.0.8.2

CPE2.3 External links

https://secunia.com/advisories/41208
https://web.archive.org/web/20100924002712/
https://www.uvnc.com/download/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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