Information disclosure in ASP.NET

1) Information disclosure

EUVDB-ID: #VU3084

Risk: High

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2010-3332

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to improper handling of errors during encryption padding verification. A remote attacker can gain access to potentially sensitive encrypted information, such as view state, read files and possibly forge cookies.

Successful exploitation of the vulnerability may allow an attacker to gain access to sensitive information and potentially compromise vulnerable web application.

Note: this vulnerability is being publicly exploited.

Mitigation

Install patches from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 1.1 - 4.0

CPE2.3

• cpe:2.3:a:microsoft:microsoft_net_framework:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:3.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_net_framework:4.0:*:*:*:*:*:*:*

External links

https://technet.microsoft.com/library/security/2416728
https://technet.microsoft.com/library/security/ms10-070

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. However, a fully functional exploit for this vulnerability is available.