Oracle Solaris 8, 9, and 10 stores back-out patch files (undo.Z) unencrypted with world-readable permissions under /var/sadm/pkg/, which allows local users to obtain password hashes and conduct brute force password guessing attacks.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-0412
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66579
• http://osvdb.org/71646
• http://secunia.com/advisories/44047
• http://www.kb.cert.org/vuls/id/648244
• http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html
• http://www.securityfocus.com/bid/47171
• http://www.vupen.com/english/advisories/2011/0882