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Mutt Insecure Temporary File Creation Weaknesses
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Secunia Advisory:
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SA22613
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Release Date:
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2006-10-30
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Popularity:
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6,457 views
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Critical:
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Not critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Mutt 1.4.x
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| CVE reference: | CVE-2006-5297
CVE-2006-5298
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Description:
Some weaknesses have been reported in mutt, which potentially can be exploited by malicious, local users to perform certain actions with escalated privileges.
1) The "safe_open()" function insecurely creates temporary files on NFS directories, because the O_EXEC flag is not always correctly honored. This may be exploited to overwrite arbitrary files.
2) A race condition exists within the "mutt_adv_mktemp()" function between calling "mktemp()" and "safe_fopen()". This may be exploited to create files with weak permissions.
Solution:
Use on trusted systems only.
Provided and/or discovered by:
Derek D. Martin
Original Advisory:
http://marc.theaimsgroup.com/?l=mutt-dev&m=115999486426292&w=2
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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