Published:2015/11/13  Last Updated:2015/11/13

JVN#56210048
Apple OS X authentication issue when recovering from sleep mode

Overview

Apple OS X contains an issue with authentication when recovering from sleep mode.

Products Affected

  • OS X versions prior to 10.9
  • Apple Remote Desktop versions prior to 3.7

Description

Apple OS X contains an issue with authentication when recovering from sleep mode. This issue exists due to a flaw in the the processing of the text entered in the dialog box upon recovering from sleep mode.

Impact

When Apple Remote Desktop is used in full screen mode and the remote connection is alive upon entering sleep mode, the text entered in the dialog box upon recovering from sleep mode is sent to the remotely connected host instead of the local host.
This may result in command execution at the remote host.

Solution

Update Apple OS X and Apple Remote Desktop
The developer has provided fixes for this issue in both Apple OS X and Apple Remote Desktop. Update both OS X and Apple Remote Desktop to the latest versions.

Vendor Status

Vendor Status Last Update Vendor Notes
Apple Vulnerable 2015/11/13

References

JPCERT/CC Addendum

This JVN publication was delayed to 2015/11/13 after the developer fix was developed. From the fiscal year 2011, JPCERT/CC is using a new vendor coordination procedure. This new procedure came from the recommendation of the fiscal year 2010 "Study Group on Information System Vulnerability Handling" aimed at more timely JVN publications.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.11.13 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with only local access requires the attacker to have either physical access to the vulnerable system or a local (shell) account.
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions exist.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:3.7

Credit

Masaki Katayama of Cyber Risks Laboratory Naviplus CO,Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2013-5229
JVN iPedia JVNDB-2015-000177