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Secunia Security Advisory 49304

Secunia Security Advisory 49304
Posted May 31, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A weakness has been reported in FreeBSD, which can be exploited by malicious people to conduct brute force attacks.

tags | advisory
systems | freebsd
MD5 | 2a1cb47b48761380ed739034edf4b343

Secunia Security Advisory 49304

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TITLE:
FreeBSD DES "crypt()" Input Handling Weakness

SECUNIA ADVISORY ID:
SA49304

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49304/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49304

RELEASE DATE:
2012-05-31

DISCUSS ADVISORY:
http://secunia.com/advisories/49304/#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/49304/

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=49304

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 FreeBSD, which can be exploited by
malicious people to conduct brute force attacks.

The weakness is caused due to an error in the DES implementation
within the "crypt()" function (libcrypt) when handling characters
with the most significant bit set (0x80), which results in the
remaining input to be ignored.

SOLUTION:
Update FreeBSD or apply the patch.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Rubin Xu, Joseph Bonneau, and Donting Yu.

ORIGINAL ADVISORY:
http://security.freebsd.org/advisories/FreeBSD-SA-12:02.crypt.asc

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

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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