SECOBJADV-2008-05: Symantec Veritas Storage Foundation Arbitrary File Read Vulnerability
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= Security Objectives Advisory (SECOBJADV-2008-05) =
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Veritas Storage Foundation Arbitrary File Read Vulnerability
http://www.security-objectives.com/advisories/SECOBJSADV-2008-05.txt
AFFECTED: Veritas Storage Foundation 5.0
PLATFORM: Solaris, Linux, AIX, HP-UX
CLASSIFICATION: Improper Ownership Management (CWE-282)
RESEARCHER: Derek Callaway
IMPACT: Arbitrary File Read
SEVERITY: Medium
DIFFICULTY: Trivial
REFERENCES: CVE-2008-4638, SYM08-018, BID 31679
BACKGROUND
Veritas Storage Foundation 5.0 from Symantec provides a complete
solution for heterogeneous online storage management. Based on the
industry-leading Veritas Volume Manager and Veritas File System, it
provides a standard set of integrated tools to centrally manage
explosive data growth, maximize storage hardware investments, provide
data protection and adapt to changing business requirements.
SUMMARY
VxFS is an extent based, journaling filesystem. It implements a
"Quick I/O for Databases" feature; qioadmin is the setuid root
administration utility for this functionality. When given an arbitrary
filename, it will write the file's contents to the standard error stream.
ANALYSIS
qioadmin will write arbitrary files (including /etc/shadow) to stderr.
Each line will be prepended with a custom error message followed by file
contents. Clearly, this can lead to privilege escalation by cracking the
password ciphertext for the "superuser" or root account.
WORKAROUND
Remove the set-uid bit from the qioadmin binary.
chmod u-s /opt/VRTS/bin/qioadmin
VENDOR RESPONSE
Symantec included a fix for this problem in the recent maintenance
release Veritas Software File System 5.0 MP3.
DISCLOSURE TIMELINE
11-Aug-2008 Discovery of Vulnerability
18-Aug-2008 Developed Proof-of-Concept
21-Aug-2008 Reported to Vendor
20-Oct-2008 Maintenance Release
22-Oct-2008 Published Advisory
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