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Bug 1193091 - (CVE-2014-9687) CVE-2014-9687 ecryptfs-utils: default salt is used for wrapping passphrase
CVE-2014-9687 ecryptfs-utils: default salt is used for wrapping passphrase
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20111219,reported=2...
: Security
Depends On: 1193092
Blocks: 1193093
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Reported: 2015-02-16 09:48 EST by Vasyl Kaigorodov
Modified: 2015-03-03 00:16 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-03-03 00:16:27 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Vasyl Kaigorodov 2015-02-16 09:48:23 EST 
It was reported [1] that by default, if no salt=/passphrase_salt= stanza supplied, standard eCryptfs configuration set up by ecryptfs-setup-private has a security implication: all installations end up wrapping (encrypting) the mount passphrase with the user login password and the default salt value (0x0011223344556677).
This simplifies bruteforcing of an actual encryption key.
No patch is available at this time.

[1]: https://bugs.launchpad.net/ecryptfs/+bug/906550
Comment 1 Vasyl Kaigorodov 2015-02-16 09:48:41 EST 
Created ecryptfs-utils tracking bugs for this issue:

Affects: fedora-all [bug 1193092]
Comment 2 Martin Prpič 2015-03-02 06:09:23 EST 
CVE assignment:

http://seclists.org/oss-sec/2015/q1/706
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