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Insecure Library Loading
Highly critical

Apple iOS Multiple Vulnerabilities

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Release Date:  2013-02-15    Last Update:  2013-03-21    Views:  3,016

Secunia Advisory SA52173

Where:

From remote

Impact:

Security Bypass, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A weakness and multiple vulnerabilities have been reported in Apple iOS, which can be exploited by malicious, local users and malicious people with physical access to bypass certain security restrictions and by malicious people to compromise a vulnerable device.

1) A logic error error when handling emergency calls in the lock screen can be exploited to bypass the lock feature and e.g. disclose contact information or conduct phone calls.

2) A state management error when handling Mach-O executable files with overlapping segments in dyld can be exploited to bypass certain device restrictions and execute unsigned code.

3) An error when handling the change of permissions during a restore from a backup within Lockdown can be exploited to bypass certain device restrictions and change permissions of arbitrary files via symbolic link attacks.

4) An error when handling pipe object pointers in the IOUSBDeviceFamily driver can be exploited to bypass certain device restrictions by piping userspace object pointers and execute arbitrary code with kernel privileges.

5) An invalid cast error exists in the handling of SVG files within WebKit.

This is related to:
SA52534

Note: Additionally a weakness in Kernel exists, which can be exploited to gain knowledge of the address of structures in the kernel.

The weakness and the vulnerabilities are reported in versions prior to 6.1.3.


Solution:
Apply iOS 6.1.3 Software Update.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) videosdebarraquito within a YouTube video. The vendor additionally credits Christopher Heffley, theMedium.ca.
2, 3, 4) The vendor credits evad3rs.
5) Originally reported by Nils and Jon Butler, MWR InfoSecurity within Google Chrome.

Original Advisory:
APPLE-SA-2013-03-19-1:
http://lists.apple.com/archives/security-announce/2013/Mar/msg00004.html
http://support.apple.com/kb/HT5704

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Apple iOS Multiple Vulnerabilities

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