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TITLE:
ZyXEL ZyWALL Appliances Multiple Authentication Bypass
Vulnerabilities

SECUNIA ADVISORY ID:
SA44356

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44356/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44356

RELEASE DATE:
2011-05-12

DISCUSS ADVISORY:
http://secunia.com/advisories/44356/#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/44356/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=44356

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:
Some vulnerabilities have been reported in ZyXEL ZyWALL appliances,
which can be exploited by malicious users and malicious people to
bypass certain security restrictions.

1) An error exists within the authentication mechanism in the
cgi-bin/export-cgi script, which can be exploited to download the
configuration files.

2) An error exists within the authentication mechanism in the
cgi-bin/file_upload-cgi script, which can be exploited to upload the
arbitrary configuration files and gain administrative access to the
device.

3) An error within the authentication mechanism in the management web
interface can be exploited to gain administrative privileges to the
device by setting the "isAdmin" variable to "true".

Successful exploitation of this vulnerability requires
"limited-admin" privileges.

The vulnerabilities have been reported in the following devices:
* ZyWALL USG-20
* ZyWALL USG-20W
* ZyWALL USG-50
* ZyWALL USG-100
* ZyWALL USG-200
* ZyWALL USG-300
* ZyWALL USG-1000
* ZyWALL USG-1050
* ZyWALL USG-2000

SOLUTION:
Reportedly, the vulnerabilities are fixed in the firmware released on
April 25th, 2011. Please contact the vendor for more information.

PROVIDED AND/OR DISCOVERED BY:
RedTeam Pentesting.

ORIGINAL ADVISORY:
RedTeam Pentesting:
http://www.redteam-pentesting.de/advisories/rt-sa-2011-003.txt
http://www.redteam-pentesting.de/advisories/rt-sa-2011-004.txt

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:
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