58482 : Google Chrome X.509 Certificate Authority (CA) Common Name Null Byte Handling SSL MiTM Weakness
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	261	over 2 years ago	over 2 years ago	8 times	90%

Timeline

Disclosure Date
2009-07-30

Description

Chrome contains a flaw that may allow a malicious user to conduct a Man in the Middle attack. The issue is triggered by Chrome not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate. It is possible that the flaw may allow a malicious user to conduct a Man in the Middle attack resulting in a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Cryptographic, Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Rumored
OSVDB: Web Related

Solution

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Products

Google, Inc.

Chrome

3.0.195.21

References

CVE ID: 2009-3456 (see also: NVD)
Bugtraq ID: 36479
Related OSVDB ID: 58481
Vendor URL: http://www.google.com/chrome
Other Advisory URL: http://www.h-online.com/security/SSL-flaw-revealed-at-Black-Hat--/news/113880
http://www.networkworld.com/news/2009/073009-more-holes-found-in-webs.html
http://www.networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
http://www.thoughtcrime.org/papers/null-prefix-attacks.pdf
http://www.wired.com/threatlevel/2009/07/kaminsky/
Generic Informational URL: https://www.blackhat.com/html/bh-usa-09/bh-usa-09-archives.html#Marlinspike

Credit

dan kaminsky - IOActive
Moxie Marlinspike -

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2009-09-30 | Disagree?

Blogs

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