Apple Mac OS X _MACOSX ZIP archive shell command execution
| macosx-zip-command-execution (24808) |  High Risk |
Description:
Apple Mac OS X could allow a remote attacker to execute arbitrary shell commands on the system, caused by improper handling of meta data within the "_MACOSX" folder in a ZIP archive. A remote attacker could exploit this vulnerability by persuading a victim to visit a malicious Web page or by sending a malicious HTML email attachment.
Note: In certain configurations, this vulnerability can be exploited automatically through Apple Safari or Apple Mail.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.8 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Apply Apple Security Update 2006-002, available from the Apple Web site. See References.
As a workaround, disable the "Open safe files after downloading" option in Safari Web browser.
References:
- Apple Security Update 2006-002: About Security Update 2006-002.
- Apple Web site: Apple - Support - Downloads.
- heise online news 21.02.2006 21:05: Security hole in Mac OS X also affects Apple Mail.
- BID-16736: Apple Mac OS X Archive Metadata Command Execution Vulnerability
- CVE-2006-0848: The Open safe files after downloading option in Safari on Apple Mac OS X allows remote user-assisted attackers to execute arbitrary commands by tricking a user into downloading a __MACOSX folder that contains metadata (resource fork) that invokes the Terminal, which automatically interprets the script using bash, as demonstrated using a ZIP file that contains a script with a safe file extension.
- OSVDB ID: 23510: Apple Safari ZIP Archive File Extension Mismatch Arbitrary File Execution
- SA18963: Mac OS X File Association Meta Data Shell Script Execution
- SECTRACK ID: 1015652: Apple Safari Lets Remote Users Cause Shell Code to Be Executed by the Target User
- US-CERT VU#999708: Apple Safari automatically executes arbitrary shell commands or code
- VUPEN/ADV-2006-0671: Apple Mac OS X Metadata Handling Remote Shell Execution Vulnerability
Platforms Affected:
- Apple Mac OS X 10.4.5
- Apple Mac OS X Server 10.4.5
Reported:
Feb 21, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.