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Date: Wed, 18 Nov 2015 10:59:03 -0500 (EST)
From: cve-assign@...re.org
To: amilburn@...l.org
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, Todd.Miller@...rtesan.com
Subject: Re: race condition checking digests/checksums in sudoers
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Hash: SHA256
>> http://www.sudo.ws/man/1.8.15/sudoers.man.html
>> If a command name is prefixed with a Digest_Spec, the command will
>> only match successfully if it can be verified using the specified
>> SHA-2 digest. This may be useful in situations where the user invoking
>> sudo has write access to the command or its parent directory.
> This results in a race condition if the digest functionality is used
> as suggested (in fact, the rules are matched before the user is
> prompted for a password, so you have quite some time to replace the
> binary from underneath sudo).
Use CVE-2015-8239.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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