Vulnerability CVE-2010-3332
Published: 2010-09-22   Modified: 2012-02-13

Description:
Microsoft .NET Framework 1.1 SP1, 2.0 SP1 and SP2, 3.5, 3.5 SP1, 3.5.1, and 4.0, as used for ASP.NET in Microsoft Internet Information Services (IIS), provides detailed error codes during decryption attempts, which allows remote attackers to decrypt and modify encrypted View State (aka __VIEWSTATE) form data, and possibly forge cookies or read application files, via a padding oracle attack, aka "ASP.NET Padding Oracle Vulnerability."

See advisories in our WLB2 database:
Topic
Author
Date
Med.
ASP.NET Padding Oracle Vulnerability (MS10-070)
Giorgio Fedon
07.10.2010
Med.
MS10-070 ASP.NET Padding Oracle File Download
Agustin Azubel
17.10.2010

Type:

CWE-310

 (Cryptographic Issues)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Microsoft -> .net framework 

 References:
http://blogs.technet.com/b/srd/archive/2010/09/17/understanding-the-asp-net-vulnerability.aspx
http://isc.sans.edu/diary.html?storyid=9568
http://pentonizer.com/general-programming/aspnet-poet-vulnerability-what-else-can-i-do/
http://securitytracker.com/id?1024459
http://threatpost.com/en_us/blogs/new-crypto-attack-affects-millions-aspnet-apps-091310
http://twitter.com/thaidn/statuses/24832350146
http://weblogs.asp.net/scottgu/archive/2010/09/18/important-asp-net-security-vulnerability.aspx
http://www.dotnetnuke.com/Community/Blogs/tabid/825/EntryId/2799/Oracle-Padding-Vulnerability-in-ASP-NET.aspx
http://www.ekoparty.org/juliano-rizzo-2010.php
http://www.microsoft.com/technet/security/advisory/2416728.mspx
http://www.mono-project.com/Vulnerabilities#ASP.NET_Padding_Oracle
http://www.securityfocus.com/bid/43316
http://www.theinquirer.net/inquirer/news/1732956/security-researchers-destroy-microsoft-aspnet-security
http://www.troyhunt.com/2010/09/fear-uncertainty-and-and-padding-oracle.html
http://www.vupen.com/english/advisories/2010/2429
http://www.vupen.com/english/advisories/2010/2751
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-070
https://exchange.xforce.ibmcloud.com/vulnerabilities/61898
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12365
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