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2.4 KiB
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68 lines
No EOL
2.4 KiB
Text
Sense of Security - Security Advisory - SOS-13-001
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Release Date. 03-Apr-2013
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Last Update. -
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Vendor Notification Date. 03-Sep-2012
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Product. Google Active Directory Sync (GADS) Tool
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Platform. Windows, Linux, Solaris
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Affected versions. All versions up to 3.1.3
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Severity Rating. High
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Impact. Exposure of sensitive information
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Attack Vector. From local without authentication
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Solution Status. Upgrade to version 3.1.6
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CVE reference. CVE - not yet assigned
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Details.
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Due to a weakness in the way the Java encryption algorithm
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(PBEwithMD5andDES) has been implemented in the GADS tool all
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stored credentials can be decrypted into plain-text. This
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includes all of the encrypted passwords stored in any end-users
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saved XML configuration file, such as Active Directory accounts,
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SMTP, Proxy details, LDAP and OAuth tokens, etc.
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Proof of Concept.
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Using the following information from the XML and GADS tool to
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decrypt all encrypted passwords from any XML:
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1. The hard coded salt:
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SALT[] = { -87, -101, -56, 50, 86, 53, -29, 3 }
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2. The hard coded DES interation count:
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ITERATION_COUNT = 20
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3. The Secret key derived from the uniqueID value in the XML:
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6512630db9a74d90a5531f574b85f398
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4. The cipher-text from the XML:
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<encryptedAdminPassword>1edOUtamjNA=</encryptedAdminPassword>
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5. The algorithm: PBEwithMD5andDES
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The decrypted value is: winning!
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Solution.
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Upgrade to version 3.1.6
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Discovered by.
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Nathaniel Carew from Sense of Security Labs.
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About us.
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Sense of Security is a leading provider of information security and
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risk management solutions. Our team has expert skills in assessment
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and assurance, strategy and architecture, and deployment through to
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ongoing management. We are Australia's premier application penetration
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testing firm and trusted IT security advisor to many of the country's
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largest organisations.
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Sense of Security Pty Ltd
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Level 8, 66 King St
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Sydney NSW 2000
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AUSTRALIA
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T: +61 (0)2 9290 4444
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F: +61 (0)2 9290 4455
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W: http://www.senseofsecurity.com.au/consulting/penetration-testing
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E: info@senseofsecurity.com.au
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Twitter: @ITsecurityAU
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The latest version of this advisory can be found at:
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http://www.senseofsecurity.com.au/advisories/SOS-13-001.pdf
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Other Sense of Security advisories can be found at:
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http://www.senseofsecurity.com.au/research/it-security-advisories.php |