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TITLE:
yubikey-personalization AES Key Generation Weakness

SECUNIA ADVISORY ID:
SA43042

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43042/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43042

RELEASE DATE:
2011-01-25

DISCUSS ADVISORY:
http://secunia.com/advisories/43042/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43042/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43042

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness has been reported in yubikey-personalization, which can be
exploited by malicious people to bypass certain security features.

The weakness is caused due to yubikey-personalization not properly
using salts when generating the AES keys, which can result in a
weaker security than expected.

The weakness is reported in versions prior to 1.3.4.

SOLUTION:
Update to version 1.3.4.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Ben.

ORIGINAL ADVISORY:
http://code.google.com/p/yubikey-personalization/source/detail?r=259

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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