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AUSCERT External Security Bulletin Redistribution
Security Update 2017-001
1 December 2017
AusCERT Security Bulletin Summary
Product: Apple High Sierra
Operating System: Mac OS
Impact/Access: Root Compromise -- Existing Account
CVE Names: CVE-2017-13872
Comment: Security Update 2017-001 is now available
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APPLE-SA-2017-11-29-2 Security Update 2017-001
Security Update 2017-001 is now available and addresses the
Available for: macOS High Sierra 10.13 and macOS High Sierra 10.13.1
Not impacted: macOS Sierra 10.12.6 and earlier
Impact: An attacker may be able to bypass administrator
authentication without supplying the administrator's password
Description: A logic error existed in the validation of credentials.
This was addressed with improved credential validation.
Entry updated November 29, 2017
To confirm that your Mac has Security Update 2017-001:
1. Open the Terminal app, which is in the Utilities folder of your
2. Type "what /usr/libexec/opendirectoryd" and press Return.
3. If Security Update 2017-001 was installed successfully, you will
see one of these project version numbers:
opendirectoryd-483.1.5 on macOS High Sierra 10.13
opendirectoryd-483.20.7 on macOS High Sierra 10.13.1
If you require the root user account on your Mac, see
https://support.apple.com/HT204012 for information on how to
re-enable the root user and change the root user's password.
Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222
This message is signed with Apple's Product Security PGP key,
and details are available at:
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