Zero-day vulnerability in Microsoft .NET Framework

ASLR bypass
CVE-2014-0295

Vulnerability details

Advisory: SB2014021102 - Multiple vulnerabilities in Microsoft .NET Framework

Vulnerable component: Microsoft .NET Framework

CVE-ID: CVE-2014-0295

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:F/RL:O/RC:C

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Description:

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to missing Address Space Layout Randomization (ASLR) features in certain components. A remote attacker can create a specially crafted Web site, trick the victim into opening it, bypass security restrictions and execute another attack.

Successful exploitation of the vulnerability results in security bypass on the vulnerable system.

Note: the vulnerability was being actively exploited.

External links:

https://technet.microsoft.com/en-us/library/security/ms14-009.aspx
https://www.symantec.com/security_response/vulnerability.jsp?bid=65418
https://www.tripwire.com/state-of-security/vulnerability-management/vert-alert-february-2014-microso...

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.